142224022 has 4 divisors (see below), whose sum is σ = 213336036. Its totient is φ = 71112010.

The previous prime is 142223993. The next prime is 142224037. The reversal of 142224022 is 220422241.

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

It is a congruent number.

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 as a sum of consecutive naturals, namely, 35556004 + ... + 35556007.

It is an arithmetic number, because the mean of its divisors is an integer number (53334009).

Almost surely, 2^142224022 is an apocalyptic number.

142224022 is a deficient number, since it is larger than the sum of its proper divisors (71112014).

142224022 is an equidigital number, since it uses as much as digits as its factorization.

142224022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71112013.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 142224022 is about 11925.7713377374. The cubic root of 142224022 is about 521.9845539877.

Adding to 142224022 its reverse (220422241), we get a palindrome (362646263).

The spelling of 142224022 in words is "one hundred forty-two million, two hundred twenty-four thousand, twenty-two".