311220121022102 has 32 divisors (see below), whose sum is σ = 481330588515840. Its totient is φ = 150857277873120.

The previous prime is 311220121022101. The next prime is 311220121022113. The reversal of 311220121022102 is 201220121022113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311220121022101) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 46944638 + ... + 53162385.

It is an arithmetic number, because the mean of its divisors is an integer number (15041580891120).

Almost surely, 2^{311220121022102} is an apocalyptic number.

311220121022102 is a deficient number, since it is larger than the sum of its proper divisors (170110467493738).

311220121022102 is a wasteful number, since it uses less digits than its factorization.

311220121022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100107428.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 311220121022102 its reverse (201220121022113), we get a palindrome (512440242044215).

The spelling of 311220121022102 in words is "three hundred eleven trillion, two hundred twenty billion, one hundred twenty-one million, twenty-two thousand, one hundred two".