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12212010210 = 2353754720113
BaseRepresentation
bin10110101111110010…
…00111110011100010
31011112002001101200110
423113321013303202
5200002233311320
65335441432150
7611424242211
oct132771076342
934462041613
1012212010210
1151a73a8024
12244993b656
1311c806565a
1483bc49078
154b719d5e0
hex2d7e47ce2

12212010210 has 64 divisors (see below), whose sum is σ = 30157483392. Its totient is φ = 3162571776.

The previous prime is 12212010193. The next prime is 12212010227. The reversal of 12212010210 is 1201021221.

It is an interprime number because it is at equal distance from previous prime (12212010193) and next prime (12212010227).

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, 597114 + ... + 617226.

It is an arithmetic number, because the mean of its divisors is an integer number (471210678).

Almost surely, 212212010210 is an apocalyptic number.

12212010210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212010210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15078741696).

12212010210 is an abundant number, since it is smaller than the sum of its proper divisors (17945473182).

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

12212010210 is a wasteful number, since it uses less digits than its factorization.

12212010210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20707.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12212010210 its reverse (1201021221), we get a palindrome (13413031431).

The spelling of 12212010210 in words is "twelve billion, two hundred twelve million, ten thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 547 555 1094 1110 1641 2735 3282 5470 8205 16410 20113 20239 40226 40478 60339 60717 100565 101195 120678 121434 201130 202390 301695 303585 603390 607170 744181 1488362 2232543 3720905 4465086 7441810 11001811 11162715 22003622 22325430 33005433 55009055 66010866 110018110 165027165 330054330 407067007 814134014 1221201021 2035335035 2442402042 4070670070 6106005105 12212010210