222131020 has 12 divisors (see below), whose sum is σ = 466475184. Its totient is φ = 88852400.

The previous prime is 222130999. The next prime is 222131023. The reversal of 222131020 is 20131222.

It is not an unprimeable number, because it can be changed into a prime (222131023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5553256 + ... + 5553295.

It is an arithmetic number, because the mean of its divisors is an integer number (38872932).

Almost surely, 2^222131020 is an apocalyptic number.

222131020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222131020 is an abundant number, since it is smaller than the sum of its proper divisors (244344164).

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

222131020 is a wasteful number, since it uses less digits than its factorization.

222131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106560 (or 11106558 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 222131020 is about 14904.0605205427. The cubic root of 222131020 is about 605.6239902208.

Adding to 222131020 its reverse (20131222), we get a palindrome (242262242).

The spelling of 222131020 in words is "two hundred twenty-two million, one hundred thirty-one thousand, twenty".