3121320222102 has 64 divisors (see below), whose sum is σ = 6631334645760. Its totient is φ = 977321504544.

The previous prime is 3121320222101. The next prime is 3121320222133. The reversal of 3121320222102 is 2012220231213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121320222101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7675093 + ... + 8071535.

It is an arithmetic number, because the mean of its divisors is an integer number (103614603840).

Almost surely, 2^{3121320222102} is an apocalyptic number.

3121320222102 is an abundant number, since it is smaller than the sum of its proper divisors (3510014423658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121320222102 is a wasteful number, since it uses less digits than its factorization.

3121320222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397497.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 3121320222102 its reverse (2012220231213), we get a palindrome (5133540453315).

The spelling of 3121320222102 in words is "three trillion, one hundred twenty-one billion, three hundred twenty million, two hundred twenty-two thousand, one hundred two".