22123111231320 has 128 divisors (see below), whose sum is σ = 72410385888000. Its totient is φ = 5362624673280.

The previous prime is 22123111231181. The next prime is 22123111231321. The reversal of 22123111231320 is 2313211132122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123111231321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11995026 + ... + 13715934.

It is an arithmetic number, because the mean of its divisors is an integer number (565706139750).

Almost surely, 2^{22123111231320} is an apocalyptic number.

22123111231320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22123111231320 is an abundant number, since it is smaller than the sum of its proper divisors (50287274656680).

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

22123111231320 is a wasteful number, since it uses less digits than its factorization.

22123111231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730673 (or 1730669 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 22123111231320 its reverse (2313211132122), we get a palindrome (24436322363442).

The spelling of 22123111231320 in words is "twenty-two trillion, one hundred twenty-three billion, one hundred eleven million, two hundred thirty-one thousand, three hundred twenty".