222120123134 has 64 divisors (see below), whose sum is σ = 434912163840. Its totient is φ = 82673205120.

The previous prime is 222120123133. The next prime is 222120123151. The reversal of 222120123134 is 431321021222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120123133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179594 + ... + 690285.

It is an arithmetic number, because the mean of its divisors is an integer number (6795502560).

Almost surely, 2^222120123134 is an apocalyptic number.

222120123134 is a deficient number, since it is larger than the sum of its proper divisors (212792040706).

222120123134 is a wasteful number, since it uses less digits than its factorization.

222120123134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869985.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 222120123134 its reverse (431321021222), we get a palindrome (653441144356).

The spelling of 222120123134 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred twenty-three thousand, one hundred thirty-four".