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12100021012210 = 2515746316645831
BaseRepresentation
bin1011000000010100000101…
…1101000100011011110010
31120211202021021020222101011
42300011001131010123302
53041221320334342320
641422401203301134
72356124541414055
oct260050135043362
946752237228334
1012100021012210
11394565446176a
12143509467a7aa
1369a047678391
142db90374ca9c
1515eb38e0b05a
hexb01417446f2

12100021012210 has 32 divisors (see below), whose sum is σ = 21966106240512. Its totient is φ = 4798793039040.

The previous prime is 12100021012207. The next prime is 12100021012253. The reversal of 12100021012210 is 1221012000121.

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, 7596006 + ... + 9049825.

It is an arithmetic number, because the mean of its divisors is an integer number (686440820016).

Almost surely, 212100021012210 is an apocalyptic number.

12100021012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12100021012210 is a deficient number, since it is larger than the sum of its proper divisors (9866085228302).

12100021012210 is a wasteful number, since it uses less digits than its factorization.

12100021012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16646458.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12100021012210 its reverse (1221012000121), we get a palindrome (13321033012331).

The spelling of 12100021012210 in words is "twelve trillion, one hundred billion, twenty-one million, twelve thousand, two hundred ten".

Divisors: 1 2 5 10 157 314 463 785 926 1570 2315 4630 72691 145382 363455 726910 16645831 33291662 83229155 166458310 2613395467 5226790934 7707019753 13066977335 15414039506 26133954670 38535098765 77070197530 1210002101221 2420004202442 6050010506105 12100021012210