22223231121 has 36 divisors (see below), whose sum is σ = 37324120752. Its totient is φ = 11722130784.

The previous prime is 22223231087. The next prime is 22223231123. The reversal of 22223231121 is 12113232222.

It is not a de Polignac number, because 22223231121 - 2¹⁰ = 22223230097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22223231123) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 422431 + ... + 472116.

It is an arithmetic number, because the mean of its divisors is an integer number (1036781132).

Almost surely, 2^22223231121 is an apocalyptic number.

22223231121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22223231121 is a deficient number, since it is larger than the sum of its proper divisors (15100889631).

22223231121 is a wasteful number, since it uses less digits than its factorization.

22223231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894590 (or 894570 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

Adding to 22223231121 its reverse (12113232222), we get a palindrome (34336463343).

The spelling of 22223231121 in words is "twenty-two billion, two hundred twenty-three million, two hundred thirty-one thousand, one hundred twenty-one".