231551425022122 has 16 divisors (see below), whose sum is σ = 347375321897760. Its totient is φ = 115759651570992.

The previous prime is 231551425022087. The next prime is 231551425022129. The reversal of 231551425022122 is 221220524155132.

It is not an unprimeable number, because it can be changed into a prime (231551425022129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1416282193 + ... + 1416445675.

It is an arithmetic number, because the mean of its divisors is an integer number (21710957618610).

Almost surely, 2^{231551425022122} is an apocalyptic number.

231551425022122 is a deficient number, since it is larger than the sum of its proper divisors (115823896875638).

231551425022122 is a wasteful number, since it uses less digits than its factorization.

231551425022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257397.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 231551425022122 its reverse (221220524155132), we get a palindrome (452771949177254).

The spelling of 231551425022122 in words is "two hundred thirty-one trillion, five hundred fifty-one billion, four hundred twenty-five million, twenty-two thousand, one hundred twenty-two".