22011311020 has 24 divisors (see below), whose sum is σ = 46229219568. Its totient is φ = 8803483200.

The previous prime is 22011310957. The next prime is 22011311033. The reversal of 22011311020 is 2011311022.

It is an unprimeable number.

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, 121290 + ... + 242350.

It is an arithmetic number, because the mean of its divisors is an integer number (1926217482).

Almost surely, 2^22011311020 is an apocalyptic number.

22011311020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011311020 is an abundant number, since it is smaller than the sum of its proper divisors (24217908548).

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

22011311020 is a wasteful number, since it uses less digits than its factorization.

22011311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130161 (or 130159 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22011311020 its reverse (2011311022), we get a palindrome (24022622042).

The spelling of 22011311020 in words is "twenty-two billion, eleven million, three hundred eleven thousand, twenty".