21010012202110 has 16 divisors (see below), whose sum is σ = 37844049534336. Its totient is φ = 8398220976288.

The previous prime is 21010012202089. The next prime is 21010012202111. The reversal of 21010012202110 is 1120221001012.

It is a super-2 number, since 2×21010012202110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010012202111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722972814 + ... + 723001873.

It is an arithmetic number, because the mean of its divisors is an integer number (2365253095896).

Almost surely, 2^{21010012202110} is an apocalyptic number.

21010012202110 is a deficient number, since it is larger than the sum of its proper divisors (16834037332226).

21010012202110 is a wasteful number, since it uses less digits than its factorization.

21010012202110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445976147.

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

Adding to 21010012202110 its reverse (1120221001012), we get a palindrome (22130233203122).

The spelling of 21010012202110 in words is "twenty-one trillion, ten billion, twelve million, two hundred two thousand, one hundred ten".