22011131320 has 16 divisors (see below), whose sum is σ = 49525045560. Its totient is φ = 8804452512.

The previous prime is 22011131309. The next prime is 22011131333. The reversal of 22011131320 is 2313111022.

It is a junction number, because it is equal to n+sod(n) for n = 22011131294 and 22011131303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275139102 + ... + 275139181.

Almost surely, 2^22011131320 is an apocalyptic number.

22011131320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011131320 is an abundant number, since it is smaller than the sum of its proper divisors (27513914240).

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

22011131320 is a wasteful number, since it uses less digits than its factorization.

22011131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550278294 (or 550278290 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22011131320 its reverse (2313111022), we get a palindrome (24324242342).

The spelling of 22011131320 in words is "twenty-two billion, eleven million, one hundred thirty-one thousand, three hundred twenty".