21222010120011 has 16 divisors (see below), whose sum is σ = 28900782802944. Its totient is φ = 13845678893504.

The previous prime is 21222010120009. The next prime is 21222010120043. The reversal of 21222010120011 is 11002101022212.

It is a cyclic number.

It is not a de Polignac number, because 21222010120011 - 2¹ = 21222010120009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21222010120511) 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, 5599290 + ... + 8590463.

It is an arithmetic number, because the mean of its divisors is an integer number (1806298925184).

Almost surely, 2^{21222010120011} is an apocalyptic number.

21222010120011 is a deficient number, since it is larger than the sum of its proper divisors (7678772682933).

21222010120011 is a wasteful number, since it uses less digits than its factorization.

21222010120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14200410.

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

Adding to 21222010120011 its reverse (11002101022212), we get a palindrome (32224111142223).

The spelling of 21222010120011 in words is "twenty-one trillion, two hundred twenty-two billion, ten million, one hundred twenty thousand, eleven".