123133222 has 4 divisors (see below), whose sum is σ = 184699836. Its totient is φ = 61566610.

The previous prime is 123133211. The next prime is 123133249. The reversal of 123133222 is 222331321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222331321 = 17 ⋅13078313.

It is a self number, because there is not a number n which added to its sum of digits gives 123133222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30783304 + ... + 30783307.

It is an arithmetic number, because the mean of its divisors is an integer number (46174959).

Almost surely, 2^123133222 is an apocalyptic number.

123133222 is a deficient number, since it is larger than the sum of its proper divisors (61566614).

123133222 is an equidigital number, since it uses as much as digits as its factorization.

123133222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61566613.

The product of its digits is 432, while the sum is 19.

The square root of 123133222 is about 11096.5409925796. The cubic root of 123133222 is about 497.4984682158.

Adding to 123133222 its reverse (222331321), we get a palindrome (345464543).

It can be divided in two parts, 1231 and 33222, that added together give a triangular number (34453 = T₂₆₂).

The spelling of 123133222 in words is "one hundred twenty-three million, one hundred thirty-three thousand, two hundred twenty-two".