22223233121 has 16 divisors (see below), whose sum is σ = 23350118400. Its totient is φ = 21110232528.

The previous prime is 22223233057. The next prime is 22223233133. The reversal of 22223233121 is 12133232222.

It is a cyclic number.

It is not a de Polignac number, because 22223233121 - 2⁶ = 22223233057 is a prime.

It is a super-2 number, since 2×22223233121² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22223233181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2078030 + ... + 2088696.

It is an arithmetic number, because the mean of its divisors is an integer number (1459382400).

Almost surely, 2^22223233121 is an apocalyptic number.

It is an amenable number.

22223233121 is a deficient number, since it is larger than the sum of its proper divisors (1126885279).

22223233121 is a wasteful number, since it uses less digits than its factorization.

22223233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11308.

The product of its digits is 1728, while the sum is 23.

Adding to 22223233121 its reverse (12133232222), we get a palindrome (34356465343).

The spelling of 22223233121 in words is "twenty-two billion, two hundred twenty-three million, two hundred thirty-three thousand, one hundred twenty-one".