222356123 has 4 divisors (see below), whose sum is σ = 242570328. Its totient is φ = 202141920.

The previous prime is 222356119. The next prime is 222356153. The reversal of 222356123 is 321653222.

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

It is a cyclic number.

It is not a de Polignac number, because 222356123 - 2² = 222356119 is a prime.

It is a super-2 number, since 2×222356123² = 98884490871182258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222356092 and 222356101.

It is not an unprimeable number, because it can be changed into a prime (222356153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10107086 + ... + 10107107.

It is an arithmetic number, because the mean of its divisors is an integer number (60642582).

Almost surely, 2^222356123 is an apocalyptic number.

222356123 is a deficient number, since it is larger than the sum of its proper divisors (20214205).

222356123 is a wasteful number, since it uses less digits than its factorization.

222356123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20214204.

The product of its digits is 4320, while the sum is 26.

The square root of 222356123 is about 14911.6103422803. The cubic root of 222356123 is about 605.8284967810.

The spelling of 222356123 in words is "two hundred twenty-two million, three hundred fifty-six thousand, one hundred twenty-three".