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122121010012210 = 251119411425148909
BaseRepresentation
bin11011110001000110000011…
…011010111110000000110010
3121000101122200011022102200121
4123301012003122332000302
5112001312312030342320
61111421341214240454
734502644320625516
oct3361060332760062
9530348604272617
10122121010012210
1135a03258511250
1211843a531b612a
13531ac671ac861
14222298d05c146
15e1b9ab0e68aa
hex6f11836be032

122121010012210 has 64 divisors (see below), whose sum is σ = 258579018230400. Its totient is φ = 41044288550400.

The previous prime is 122121010012201. The next prime is 122121010012223. The reversal of 122121010012210 is 12210010121221.

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, 712488765 + ... + 712660144.

It is an arithmetic number, because the mean of its divisors is an integer number (4040297159850).

Almost surely, 2122121010012210 is an apocalyptic number.

122121010012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121010012210 is an abundant number, since it is smaller than the sum of its proper divisors (136458008218190).

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

122121010012210 is a wasteful number, since it uses less digits than its factorization.

122121010012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425148987.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122121010012210 its reverse (12210010121221), we get a palindrome (134331020133431).

The spelling of 122121010012210 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, ten million, twelve thousand, two hundred ten".

Divisors: 1 2 5 10 11 19 22 38 41 55 82 95 110 190 205 209 410 418 451 779 902 1045 1558 2090 2255 3895 4510 7790 8569 17138 42845 85690 1425148909 2850297818 7125744545 14251489090 15676637999 27077829271 31353275998 54155658542 58431105269 78383189995 116862210538 135389146355 156766379990 270778292710 292155526345 297856121981 584311052690 595712243962 642742157959 1110191000111 1285484315918 1489280609905 2220382000222 2978561219810 3213710789795 5550955000555 6427421579590 11101910001110 12212101001221 24424202002442 61060505006105 122121010012210