21020211011202 has 48 divisors (see below), whose sum is σ = 46781873772480. Its totient is φ = 6259119881760.

The previous prime is 21020211011167. The next prime is 21020211011249. The reversal of 21020211011202 is 20211011202012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140138302 + ... + 140288217.

It is an arithmetic number, because the mean of its divisors is an integer number (974622370260).

Almost surely, 2^{21020211011202} is an apocalyptic number.

21020211011202 is an abundant number, since it is smaller than the sum of its proper divisors (25761662761278).

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

21020211011202 is a wasteful number, since it uses less digits than its factorization.

21020211011202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280426599 (or 280426568 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21020211011202 its reverse (20211011202012), we get a palindrome (41231222213214).

The spelling of 21020211011202 in words is "twenty-one trillion, twenty billion, two hundred eleven million, eleven thousand, two hundred two".