22120131020 has 48 divisors (see below), whose sum is σ = 50419504128. Its totient is φ = 8103110400.

The previous prime is 22120130909. The next prime is 22120131041. The reversal of 22120131020 is 2013102122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22120130986 and 22120131004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301931 + ... + 367970.

It is an arithmetic number, because the mean of its divisors is an integer number (1050406336).

Almost surely, 2^22120131020 is an apocalyptic number.

22120131020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120131020 is an abundant number, since it is smaller than the sum of its proper divisors (28299373108).

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

22120131020 is a wasteful number, since it uses less digits than its factorization.

22120131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670050 (or 670048 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22120131020 its reverse (2013102122), we get a palindrome (24133233142).

The spelling of 22120131020 in words is "twenty-two billion, one hundred twenty million, one hundred thirty-one thousand, twenty".