21002022011110 has 32 divisors (see below), whose sum is σ = 43208302174272. Its totient is φ = 7200002826240.

The previous prime is 21002022011099. The next prime is 21002022011111. The reversal of 21002022011110 is 1111022020012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002022011111) 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, 13648531 + ... + 15109150.

It is an arithmetic number, because the mean of its divisors is an integer number (1350259442946).

Almost surely, 2^{21002022011110} is an apocalyptic number.

21002022011110 is an abundant number, since it is smaller than the sum of its proper divisors (22206280163162).

21002022011110 is a wasteful number, since it uses less digits than its factorization.

21002022011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28768128.

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

Adding to 21002022011110 its reverse (1111022020012), we get a palindrome (22113044031122).

The spelling of 21002022011110 in words is "twenty-one trillion, two billion, twenty-two million, eleven thousand, one hundred ten".