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1020122202220 = 225116836789047
BaseRepresentation
bin11101101100001000000…
…01011000000001101100
310121112010001220012122221
432312010001120001230
5113203202240432340
62100345423045124
7133462402435432
oct16660401300154
93545101805587
101020122202220
113636a4430290
12145858a407a4
137527408b884
1437534a5cd52
151b8080c044a
hexed8405806c

1020122202220 has 48 divisors (see below), whose sum is σ = 2340429251328. Its totient is φ = 370410349760.

The previous prime is 1020122202191. The next prime is 1020122202259. The reversal of 1020122202220 is 222022210201.

It is a junction number, because it is equal to n+sod(n) for n = 1020122202194 and 1020122202203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3244264 + ... + 3544783.

It is an arithmetic number, because the mean of its divisors is an integer number (48758942736).

Almost surely, 21020122202220 is an apocalyptic number.

1020122202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020122202220 is an abundant number, since it is smaller than the sum of its proper divisors (1320307049108).

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

1020122202220 is a wasteful number, since it uses less digits than its factorization.

1020122202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6789750 (or 6789748 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1020122202220 its reverse (222022210201), we get a palindrome (1242144412421).

The spelling of 1020122202220 in words is "one trillion, twenty billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 683 1366 2732 3415 6830 7513 13660 15026 30052 37565 75130 150260 6789047 13578094 27156188 33945235 67890470 74679517 135780940 149359034 298718068 373397585 746795170 1493590340 4636919101 9273838202 18547676404 23184595505 46369191010 51006110111 92738382020 102012220222 204024440444 255030550555 510061101110 1020122202220