21200011002212 has 48 divisors (see below), whose sum is σ = 46071331246080. Its totient is φ = 8329861216800.

The previous prime is 21200011002167. The next prime is 21200011002221. The reversal of 21200011002212 is 21220011000212.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 642719714 + ... + 642752697.

It is an arithmetic number, because the mean of its divisors is an integer number (959819400960).

Almost surely, 2^{21200011002212} is an apocalyptic number.

It is an amenable number.

21200011002212 is an abundant number, since it is smaller than the sum of its proper divisors (24871320243868).

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

21200011002212 is a wasteful number, since it uses less digits than its factorization.

21200011002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285472472 (or 1285472470 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21200011002212 its reverse (21220011000212), we get a palindrome (42420022002424).

It can be divided in two parts, 2120001 and 1002212, that added together give a palindrome (3122213).

The spelling of 21200011002212 in words is "twenty-one trillion, two hundred billion, eleven million, two thousand, two hundred twelve".