222188142 has 32 divisors (see below), whose sum is σ = 505854720. Its totient is φ = 64401920.

The previous prime is 222188117. The next prime is 222188149. The reversal of 222188142 is 241881222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222188149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71667 + ... + 74702.

It is an arithmetic number, because the mean of its divisors is an integer number (15807960).

Almost surely, 2^222188142 is an apocalyptic number.

222188142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222188142 is an abundant number, since it is smaller than the sum of its proper divisors (283666578).

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

222188142 is a wasteful number, since it uses less digits than its factorization.

222188142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146408.

The product of its digits is 4096, while the sum is 30.

The square root of 222188142 is about 14905.9767207654. The cubic root of 222188142 is about 605.6758987576.

The spelling of 222188142 in words is "two hundred twenty-two million, one hundred eighty-eight thousand, one hundred forty-two".