22022311020 has 48 divisors (see below), whose sum is σ = 65289678048. Its totient is φ = 5527168000.

The previous prime is 22022311007. The next prime is 22022311021. The reversal of 22022311020 is 2011322022.

It is a happy number.

It is a super-2 number, since 2×22022311020² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (22022311021) 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, 10794231 + ... + 10796270.

It is an arithmetic number, because the mean of its divisors is an integer number (1360201626).

Almost surely, 2^22022311020 is an apocalyptic number.

22022311020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022311020 is an abundant number, since it is smaller than the sum of its proper divisors (43267367028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22022311020 is a wasteful number, since it uses less digits than its factorization.

22022311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21590530 (or 21590528 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22022311020 its reverse (2011322022), we get a palindrome (24033633042).

The spelling of 22022311020 in words is "twenty-two billion, twenty-two million, three hundred eleven thousand, twenty".