21222231231011 has 8 divisors (see below), whose sum is σ = 21242593140624. Its totient is φ = 21201870001120.

The previous prime is 21222231230989. The next prime is 21222231231053. The reversal of 21222231231011 is 11013213222212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21222231231011 - 2¹⁸ = 21222230968867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21222231231211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80671256 + ... + 80933898.

It is an arithmetic number, because the mean of its divisors is an integer number (2655324142578).

Almost surely, 2^{21222231231011} is an apocalyptic number.

21222231231011 is a deficient number, since it is larger than the sum of its proper divisors (20361909613).

21222231231011 is a wasteful number, since it uses less digits than its factorization.

21222231231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339861.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21222231231011 its reverse (11013213222212), we get a palindrome (32235444453223).

The spelling of 21222231231011 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred thirty-one million, two hundred thirty-one thousand, eleven".