22022020231 has 4 divisors (see below), whose sum is σ = 22060588264. Its totient is φ = 21983452200.

The previous prime is 22022020213. The next prime is 22022020271. The reversal of 22022020231 is 13202022022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22022020231 - 2⁵ = 22022020199 is a prime.

It is a super-2 number, since 2×22022020231² (a number of 21 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 (22022020271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19283160 + ... + 19284301.

It is an arithmetic number, because the mean of its divisors is an integer number (5515147066).

Almost surely, 2^22022020231 is an apocalyptic number.

22022020231 is a deficient number, since it is larger than the sum of its proper divisors (38568033).

22022020231 is an equidigital number, since it uses as much as digits as its factorization.

22022020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38568032.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22022020231 its reverse (13202022022), we get a palindrome (35224042253).

The spelling of 22022020231 in words is "twenty-two billion, twenty-two million, twenty thousand, two hundred thirty-one".