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231022013222022 = 231131211153488387
BaseRepresentation
bin110100100001110100000001…
…000010001000110010000110
31010021222111012022111210012220
4310201310001002020302012
5220240031040341101042
62135202014150553210
766442534565040651
oct6441640102106206
91107874168453186
10231022013222022
1167679981806870
1221ab1744968806
139bba389497c09
14410974cc3a898
151ba962ce708ec
hexd21d01088c86

231022013222022 has 64 divisors (see below), whose sum is σ = 520554126901248. Its totient is φ = 67716296676000.

The previous prime is 231022013222003. The next prime is 231022013222051. The reversal of 231022013222022 is 220222310220132.

It is a super-2 number, since 2×2310220132220222 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231022013221983 and 231022013222001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22425088 + ... + 31063299.

It is an arithmetic number, because the mean of its divisors is an integer number (8133658232832).

Almost surely, 2231022013222022 is an apocalyptic number.

231022013222022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231022013222022 is an abundant number, since it is smaller than the sum of its proper divisors (289532113679226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231022013222022 is a wasteful number, since it uses less digits than its factorization.

231022013222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53490545.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 231022013222022 its reverse (220222310220132), we get a palindrome (451244323442154).

The spelling of 231022013222022 in words is "two hundred thirty-one trillion, twenty-two billion, thirteen million, two hundred twenty-two thousand, twenty-two".

Divisors: 1 2 3 6 11 22 31 33 62 66 93 186 341 682 1023 2046 2111 4222 6333 12666 23221 46442 65441 69663 130882 139326 196323 392646 719851 1439702 2159553 4319106 53488387 106976774 160465161 320930322 588372257 1176744514 1658139997 1765116771 3316279994 3530233542 4974419991 9948839982 18239539967 36479079934 54718619901 109437239802 112913984957 225827969914 338741954871 677483909742 1242053834527 2484107669054 3500333533667 3726161503581 7000667067334 7452323007162 10501000601001 21002001202002 38503668870337 77007337740674 115511006611011 231022013222022