22111211320 has 32 divisors (see below), whose sum is σ = 54272974320. Its totient is φ = 8040440320.

The previous prime is 22111211303. The next prime is 22111211323. The reversal of 22111211320 is 2311211122.

It is a super-2 number, since 2×22111211320² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22111211294 and 22111211303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111211323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25125937 + ... + 25126816.

Almost surely, 2^22111211320 is an apocalyptic number.

22111211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111211320 is an abundant number, since it is smaller than the sum of its proper divisors (32161763000).

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

22111211320 is a wasteful number, since it uses less digits than its factorization.

22111211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50252775 (or 50252771 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 22111211320 its reverse (2311211122), we get a palindrome (24422422442).

The spelling of 22111211320 in words is "twenty-two billion, one hundred eleven million, two hundred eleven thousand, three hundred twenty".