22220233012123 has 4 divisors (see below), whose sum is σ = 22238952670440. Its totient is φ = 22201513353808.

The previous prime is 22220233012093. The next prime is 22220233012141. The reversal of 22220233012123 is 32121033202222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22220233012123 is a prime.

It is a super-2 number, since 2×22220233012123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220233012183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9359827378 + ... + 9359829751.

It is an arithmetic number, because the mean of its divisors is an integer number (5559738167610).

Almost surely, 2^{22220233012123} is an apocalyptic number.

22220233012123 is a deficient number, since it is larger than the sum of its proper divisors (18719658317).

22220233012123 is a wasteful number, since it uses less digits than its factorization.

22220233012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18719658316.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 22220233012123 its reverse (32121033202222), we get a palindrome (54341266214345).

The spelling of 22220233012123 in words is "twenty-two trillion, two hundred twenty billion, two hundred thirty-three million, twelve thousand, one hundred twenty-three".