22123212022 has 4 divisors (see below), whose sum is σ = 33184818036. Its totient is φ = 11061606010.

The previous prime is 22123212019. The next prime is 22123212043. The reversal of 22123212022 is 22021232122.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5530803004 + ... + 5530803007.

It is an arithmetic number, because the mean of its divisors is an integer number (8296204509).

Almost surely, 2^22123212022 is an apocalyptic number.

22123212022 is a deficient number, since it is larger than the sum of its proper divisors (11061606014).

22123212022 is a wasteful number, since it uses less digits than its factorization.

22123212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061606013.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22123212022 its reverse (22021232122), we get a palindrome (44144444144).

The spelling of 22123212022 in words is "twenty-two billion, one hundred twenty-three million, two hundred twelve thousand, twenty-two".