21012301113210 has 192 divisors, whose sum is σ = 63363162560256. Its totient is φ = 4780484966400.

The previous prime is 21012301113173. The next prime is 21012301113247. The reversal of 21012301113210 is 1231110321012.

21012301113210 is a `hidden beast` number, since 2 + 1 + 0 + 1 + 230 + 111 + 321 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (21012301113173) and next prime (21012301113247).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7498911 + ... + 9912530.

It is an arithmetic number, because the mean of its divisors is an integer number (330016471668).

Almost surely, 2^{21012301113210} is an apocalyptic number.

21012301113210 is an abundant number, since it is smaller than the sum of its proper divisors (42350861447046).

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

21012301113210 is a wasteful number, since it uses less digits than its factorization.

21012301113210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17411541 (or 17411538 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 21012301113210 its reverse (1231110321012), we get a palindrome (22243411434222).

The spelling of 21012301113210 in words is "twenty-one trillion, twelve billion, three hundred one million, one hundred thirteen thousand, two hundred ten".