22122123222 has 64 divisors (see below), whose sum is σ = 47403195840. Its totient is φ = 6858080256.

The previous prime is 22122123217. The next prime is 22122123241. The reversal of 22122123222 is 22232122122.

It is a super-2 number, since 2×22122123222² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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 in 31 ways as a sum of consecutive naturals, for example, 8477854 + ... + 8480462.

It is an arithmetic number, because the mean of its divisors is an integer number (740674935).

Almost surely, 2^22122123222 is an apocalyptic number.

22122123222 is an abundant number, since it is smaller than the sum of its proper divisors (25281072618).

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

22122123222 is a wasteful number, since it uses less digits than its factorization.

22122123222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3585.

The product of its digits is 768, while the sum is 21.

Adding to 22122123222 its reverse (22232122122), we get a palindrome (44354245344).

The spelling of 22122123222 in words is "twenty-two billion, one hundred twenty-two million, one hundred twenty-three thousand, two hundred twenty-two".