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10231021000221 = 373115715854071
BaseRepresentation
bin1001010011100001100001…
…0111110101011000011101
31100020002001110000000200220
42110320120113311120131
52320111112334001341
633432022142511553
72104111144424220
oct224703027653035
940202043000626
1010231021000221
113294a516a588a
121192a102955b9
13592a20220418
142752810b15b7
1512b1eb96ea66
hex94e185f561d

10231021000221 has 16 divisors (see below), whose sum is σ = 16093034569728. Its totient is φ = 5657707465200.

The previous prime is 10231021000183. The next prime is 10231021000267. The reversal of 10231021000221 is 12200012013201.

10231021000221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10231021000221 - 26 = 10231021000157 is a prime.

It is a super-2 number, since 2×102310210002212 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10231021000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231021000271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7857926385 + ... + 7857927686.

It is an arithmetic number, because the mean of its divisors is an integer number (1005814660608).

Almost surely, 210231021000221 is an apocalyptic number.

It is an amenable number.

10231021000221 is a deficient number, since it is larger than the sum of its proper divisors (5862013569507).

10231021000221 is a wasteful number, since it uses less digits than its factorization.

10231021000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15715854112.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10231021000221 its reverse (12200012013201), we get a palindrome (22431033013422).

The spelling of 10231021000221 in words is "ten trillion, two hundred thirty-one billion, twenty-one million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 3 7 21 31 93 217 651 15715854071 47147562213 110010978497 330032935491 487191476201 1461574428603 3410340333407 10231021000221