21011202000210 has 32 divisors (see below), whose sum is σ = 51789773581632. Its totient is φ = 5451555113280.

The previous prime is 21011202000209. The next prime is 21011202000211. The reversal of 21011202000210 is 1200020211012.

It is an interprime number because it is at equal distance from previous prime (21011202000209) and next prime (21011202000211).

It is not an unprimeable number, because it can be changed into a prime (21011202000211) 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, 9464504296 + ... + 9464506515.

It is an arithmetic number, because the mean of its divisors is an integer number (1618430424426).

Almost surely, 2^{21011202000210} is an apocalyptic number.

21011202000210 is an abundant number, since it is smaller than the sum of its proper divisors (30778571581422).

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

21011202000210 is a wasteful number, since it uses less digits than its factorization.

21011202000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18929010858.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21011202000210 its reverse (1200020211012), we get a palindrome (22211222211222).

The spelling of 21011202000210 in words is "twenty-one trillion, eleven billion, two hundred two million, two hundred ten", and thus it is an aban number.