3121221332122 has 8 divisors (see below), whose sum is σ = 4681846097172. Its totient is φ = 1560605966400.

The previous prime is 3121221332077. The next prime is 3121221332147. The reversal of 3121221332122 is 2212331221213.

It can be written as a sum of positive squares in 2 ways, for example, as 2254979752281 + 866241579841 = 1501659^2 + 930721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450879 + ... + 2889202.

Almost surely, 2^{3121221332122} is an apocalyptic number.

3121221332122 is a deficient number, since it is larger than the sum of its proper divisors (1560624765050).

3121221332122 is a wasteful number, since it uses less digits than its factorization.

3121221332122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4699664.

The product of its digits is 1728, while the sum is 25.

Adding to 3121221332122 its reverse (2212331221213), we get a palindrome (5333552553335).

The spelling of 3121221332122 in words is "three trillion, one hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, one hundred twenty-two".