321431010212122 has 16 divisors (see below), whose sum is σ = 510515668631592. Its totient is φ = 151259401912320.

The previous prime is 321431010212113. The next prime is 321431010212129. The reversal of 321431010212122 is 221212010134123.

It can be written as a sum of positive squares in 4 ways, for example, as 294739228256841 + 26691781955281 = 17167971^2 + 5166409^2 .

It is not an unprimeable number, because it can be changed into a prime (321431010212129) 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, 67990503 + ... + 72564250.

Almost surely, 2^{321431010212122} is an apocalyptic number.

321431010212122 is a deficient number, since it is larger than the sum of its proper divisors (189084658419470).

321431010212122 is a wasteful number, since it uses less digits than its factorization.

321431010212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140622033.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 321431010212122 its reverse (221212010134123), we get a palindrome (542643020346245).

The spelling of 321431010212122 in words is "three hundred twenty-one trillion, four hundred thirty-one billion, ten million, two hundred twelve thousand, one hundred twenty-two".