422220131 has 16 divisors (see below), whose sum is σ = 449100288. Its totient is φ = 396105600.

The previous prime is 422220121. The next prime is 422220137. The reversal of 422220131 is 131022224.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422220131 is a prime.

It is a super-2 number, since 2×422220131² = 356539678043314322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422220137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478811 + ... + 479691.

It is an arithmetic number, because the mean of its divisors is an integer number (28068768).

Almost surely, 2^422220131 is an apocalyptic number.

422220131 is a deficient number, since it is larger than the sum of its proper divisors (26880157).

422220131 is a wasteful number, since it uses less digits than its factorization.

422220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 422220131 is about 20547.9957903441. The cubic root of 422220131 is about 750.2044663270.

Adding to 422220131 its reverse (131022224), we get a palindrome (553242355).

The spelling of 422220131 in words is "four hundred twenty-two million, two hundred twenty thousand, one hundred thirty-one".