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222031021030 = 257131150321211
BaseRepresentation
bin1100111011001000010…
…1001000001111100110
3210020002201112111211021
43032302011020033212
512114204420133110
6245555531201354
722020064353010
oct3166205101746
9706081474737
10222031021030
11861877a53a5
12370458a625a
1317c25712ab0
14aa640191b0
155b9767e2da
hex33b21483e6

222031021030 has 64 divisors (see below), whose sum is σ = 491950061568. Its totient is φ = 70259736960.

The previous prime is 222031021027. The next prime is 222031021039. The reversal of 222031021030 is 30120130222.

It is a junction number, because it is equal to n+sod(n) for n = 222031020995 and 222031021013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222031021039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10457125 + ... + 10478335.

It is an arithmetic number, because the mean of its divisors is an integer number (7686719712).

Almost surely, 2222031021030 is an apocalyptic number.

222031021030 is an abundant number, since it is smaller than the sum of its proper divisors (269919040538).

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

222031021030 is a wasteful number, since it uses less digits than its factorization.

222031021030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32741.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 222031021030 its reverse (30120130222), we get a palindrome (252151151252).

The spelling of 222031021030 in words is "two hundred twenty-two billion, thirty-one million, twenty-one thousand, thirty".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 11503 21211 23006 42422 57515 80521 106055 115030 148477 149539 161042 212110 275743 296954 299078 402605 551486 742385 747695 805210 1046773 1378715 1484770 1495390 1930201 2093546 2757430 3860402 5233865 9651005 10467730 19302010 243990133 487980266 1219950665 1707930931 2439901330 3171871729 3415861862 6343743458 8539654655 15859358645 17079309310 22203102103 31718717290 44406204206 111015510515 222031021030