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210021201012012 = 2231312402110855337
BaseRepresentation
bin101111110000001101011111…
…000101001110010100101100
31000112121211102121022022101220
4233300031133011032110230
5210011441404424341022
62022402224025503340
762144350101420555
oct5760153705162454
91015554377268356
10210021201012012
1160a125448034a5
121b67b623341b50
139025bb687c010
1439c111a74d32c
1519432003d885c
hexbf035f14e52c

210021201012012 has 48 divisors (see below), whose sum is σ = 527749885938912. Its totient is φ = 64621380994560.

The previous prime is 210021201011987. The next prime is 210021201012023. The reversal of 210021201012012 is 210210102120012.

It is a junction number, because it is equal to n+sod(n) for n = 210021201011982 and 210021201012000.

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, 13919608 + ... + 24774944.

It is an arithmetic number, because the mean of its divisors is an integer number (10994789290394).

Almost surely, 2210021201012012 is an apocalyptic number.

It is an amenable number.

210021201012012 is an abundant number, since it is smaller than the sum of its proper divisors (317728684926900).

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

210021201012012 is a wasteful number, since it uses less digits than its factorization.

210021201012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10979378 (or 10979376 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210021201012012 its reverse (210210102120012), we get a palindrome (420231303132024).

The spelling of 210021201012012 in words is "two hundred ten trillion, twenty-one billion, two hundred one million, twelve thousand, twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 124021 248042 372063 496084 744126 1488252 1612273 3224546 4836819 6449092 9673638 10855337 19347276 21710674 32566011 43421348 65132022 130264044 141119381 282238762 423358143 564477524 846716286 1693432572 1346289750077 2692579500154 4038869250231 5385159000308 8077738500462 16155477000924 17501766751001 35003533502002 52505300253003 70007067004004 105010600506006 210021201012012