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12102221312310 = 2351564372578721
BaseRepresentation
bin1011000000011100010010…
…0110100011000100110110
31120211221221121111210200110
42300013010212203010312
53041240322123443220
641423403403323450
72356233216563133
oct260070446430466
946757847453613
1012102221312310
1139465834767a8
1214355a9520586
1369a3084834bc
142dba71a6758a
1515ec17186be0
hexb01c49a3136

12102221312310 has 32 divisors (see below), whose sum is σ = 29045528080992. Its totient is φ = 3227237135360.

The previous prime is 12102221312267. The next prime is 12102221312333. The reversal of 12102221312310 is 1321312220121.

It is a super-2 number, since 2×121022213123102 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 3403750 + ... + 5982470.

It is an arithmetic number, because the mean of its divisors is an integer number (907672752531).

Almost surely, 212102221312310 is an apocalyptic number.

12102221312310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102221312310 is an abundant number, since it is smaller than the sum of its proper divisors (16943306768682).

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

12102221312310 is a wasteful number, since it uses less digits than its factorization.

12102221312310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735168.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12102221312310 its reverse (1321312220121), we get a palindrome (13423533532431).

The spelling of 12102221312310 in words is "twelve trillion, one hundred two billion, two hundred twenty-one million, three hundred twelve thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 156437 312874 469311 782185 938622 1564370 2346555 2578721 4693110 5157442 7736163 12893605 15472326 25787210 38680815 77361630 403407377077 806814754154 1210222131231 2017036885385 2420444262462 4034073770770 6051110656155 12102221312310