201122431042 has 16 divisors (see below), whose sum is σ = 325854160632. Its totient is φ = 92550286080.

The previous prime is 201122431009. The next prime is 201122431051. The reversal of 201122431042 is 240134221102.

It can be written as a sum of positive squares in 4 ways, for example, as 149429406721 + 51693024321 = 386561^2 + 227361^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 11468209 + ... + 11485732.

Almost surely, 2^201122431042 is an apocalyptic number.

201122431042 is a deficient number, since it is larger than the sum of its proper divisors (124731729590).

201122431042 is a wasteful number, since it uses less digits than its factorization.

201122431042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22954293.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 201122431042 its reverse (240134221102), we get a palindrome (441256652144).

The spelling of 201122431042 in words is "two hundred one billion, one hundred twenty-two million, four hundred thirty-one thousand, forty-two".