222131002 has 4 divisors (see below), whose sum is σ = 333196506. Its totient is φ = 111065500.

The previous prime is 222130999. The next prime is 222131023. The reversal of 222131002 is 200131222.

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

It can be written as a sum of positive squares in only one way, i.e., 195412441 + 26718561 = 13979^2 + 5169^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55532749 + ... + 55532752.

Almost surely, 2^222131002 is an apocalyptic number.

222131002 is a deficient number, since it is larger than the sum of its proper divisors (111065504).

222131002 is a wasteful number, since it uses less digits than its factorization.

222131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111065503.

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

The square root of 222131002 is about 14904.0599166804. The cubic root of 222131002 is about 605.6239738623.

Adding to 222131002 its reverse (200131222), we get a palindrome (422262224).

The spelling of 222131002 in words is "two hundred twenty-two million, one hundred thirty-one thousand, two".