142422122 has 12 divisors (see below), whose sum is σ = 220749858. Its totient is φ = 68913000.

The previous prime is 142422089. The next prime is 142422131. The reversal of 142422122 is 221224241.

It can be written as a sum of positive squares in only one way, i.e., 123854641 + 18567481 = 11129^2 + 4309^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142422094 and 142422103.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 35129 + ... + 38972.

Almost surely, 2^142422122 is an apocalyptic number.

142422122 is a deficient number, since it is larger than the sum of its proper divisors (78327736).

142422122 is an equidigital number, since it uses as much as digits as its factorization.

142422122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74165 (or 74134 counting only the distinct ones).

The product of its digits is 512, while the sum is 20.

The square root of 142422122 is about 11934.0739900505. The cubic root of 142422122 is about 522.2267942829.

Adding to 142422122 its reverse (221224241), we get a palindrome (363646363).

The spelling of 142422122 in words is "one hundred forty-two million, four hundred twenty-two thousand, one hundred twenty-two".