222242131 has 4 divisors (see below), whose sum is σ = 229411264. Its totient is φ = 215073000.

The previous prime is 222242113. The next prime is 222242147. The reversal of 222242131 is 131242222.

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 222242131 - 2⁹ = 222241619 is a prime.

It is a super-2 number, since 2×222242131² = 98783129582842322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222242099 and 222242108.

It is not an unprimeable number, because it can be changed into a prime (222242231) 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, 3584520 + ... + 3584581.

It is an arithmetic number, because the mean of its divisors is an integer number (57352816).

Almost surely, 2^222242131 is an apocalyptic number.

222242131 is a deficient number, since it is larger than the sum of its proper divisors (7169133).

222242131 is an equidigital number, since it uses as much as digits as its factorization.

222242131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7169132.

The product of its digits is 384, while the sum is 19.

The square root of 222242131 is about 14907.7875957501. The cubic root of 222242131 is about 605.7249520623.

Adding to 222242131 its reverse (131242222), we get a palindrome (353484353).

Subtracting from 222242131 its reverse (131242222), we obtain a palindrome (90999909).

The spelling of 222242131 in words is "two hundred twenty-two million, two hundred forty-two thousand, one hundred thirty-one".