22021122022231 has 8 divisors (see below), whose sum is σ = 22394449227600. Its totient is φ = 21647797745280.

The previous prime is 22021122022177. The next prime is 22021122022267. The reversal of 22021122022231 is 13222022112022.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021122022231 is a prime.

It is a super-2 number, since 2×22021122022231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021122022531) 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, 18826825 + ... + 19962253.

It is an arithmetic number, because the mean of its divisors is an integer number (2799306153450).

Almost surely, 2^{22021122022231} is an apocalyptic number.

22021122022231 is a deficient number, since it is larger than the sum of its proper divisors (373327205369).

22021122022231 is a wasteful number, since it uses less digits than its factorization.

22021122022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464209.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 22021122022231 its reverse (13222022112022), we get a palindrome (35243144134253).

The spelling of 22021122022231 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-two million, twenty-two thousand, two hundred thirty-one".