22012130020 has 24 divisors (see below), whose sum is σ = 47352925368. Its totient is φ = 8590099200.

The previous prime is 22012130017. The next prime is 22012130039. The reversal of 22012130020 is 2003121022.

It can be written as a sum of positive squares in 4 ways, for example, as 185613376 + 21826516644 = 13624^2 + 147738^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13421211 + ... + 13422850.

It is an arithmetic number, because the mean of its divisors is an integer number (1973038557).

Almost surely, 2^22012130020 is an apocalyptic number.

22012130020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012130020 is an abundant number, since it is smaller than the sum of its proper divisors (25340795348).

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

22012130020 is a wasteful number, since it uses less digits than its factorization.

22012130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26844111 (or 26844109 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22012130020 its reverse (2003121022), we get a palindrome (24015251042).

The spelling of 22012130020 in words is "twenty-two billion, twelve million, one hundred thirty thousand, twenty".