231222310222132 has 12 divisors (see below), whose sum is σ = 418592113333380. Its totient is φ = 111624563555456.

The previous prime is 231222310222121. The next prime is 231222310222151. The reversal of 231222310222132 is 231222013222132.

It can be written as a sum of positive squares in 2 ways, for example, as 37313454608676 + 193908855613456 = 6108474^2 + 13925116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231222310222132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996647888773 + ... + 996647889004.

It is an arithmetic number, because the mean of its divisors is an integer number (34882676111115).

Almost surely, 2^{231222310222132} is an apocalyptic number.

It is an amenable number.

231222310222132 is a deficient number, since it is larger than the sum of its proper divisors (187369803111248).

231222310222132 is a wasteful number, since it uses less digits than its factorization.

231222310222132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993295777810 (or 1993295777808 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 231222310222132 its reverse (231222013222132), we get a palindrome (462444323444264).

The spelling of 231222310222132 in words is "two hundred thirty-one trillion, two hundred twenty-two billion, three hundred ten million, two hundred twenty-two thousand, one hundred thirty-two".