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122010102100 = 22522967627947
BaseRepresentation
bin111000110100001011…
…1100110100101010100
3102122221002112101012101
41301220113212211110
53444334041231400
6132014535531444
711546344520245
oct1615027464524
9378832471171
10122010102100
1147820581627
121b790b29b84
13b67578a8b3
145c962b0ccc
1532916b156a
hex1c685e6954

122010102100 has 72 divisors (see below), whose sum is σ = 277980020640. Its totient is φ = 46417768320.

The previous prime is 122010102091. The next prime is 122010102107. The reversal of 122010102100 is 1201010221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010102107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119674 + ... + 508273.

It is an arithmetic number, because the mean of its divisors is an integer number (3860833620).

Almost surely, 2122010102100 is an apocalyptic number.

122010102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122010102100 is an abundant number, since it is smaller than the sum of its proper divisors (155969918540).

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

122010102100 is a wasteful number, since it uses less digits than its factorization.

122010102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628057 (or 628050 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122010102100 its reverse (1201010221), we get a palindrome (123211112321).

The spelling of 122010102100 in words is "one hundred twenty-two billion, ten million, one hundred two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 67 100 116 134 145 268 290 335 580 670 725 1340 1450 1675 1943 2900 3350 3886 6700 7772 9715 19430 38860 48575 97150 194300 627947 1255894 2511788 3139735 6279470 12558940 15698675 18210463 31397350 36420926 42072449 62794700 72841852 84144898 91052315 168289796 182104630 210362245 364209260 420724490 455261575 841448980 910523150 1051811225 1220101021 1821046300 2103622450 2440202042 4207244900 4880404084 6100505105 12201010210 24402020420 30502525525 61005051050 122010102100