121031311022 has 16 divisors (see below), whose sum is σ = 190711735200. Its totient is φ = 57496049952.

The previous prime is 121031311021. The next prime is 121031311067. The reversal of 121031311022 is 220113130121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121031311021) 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, 8822393 + ... + 8836100.

It is an arithmetic number, because the mean of its divisors is an integer number (11919483450).

Almost surely, 2^121031311022 is an apocalyptic number.

121031311022 is a deficient number, since it is larger than the sum of its proper divisors (69680424178).

121031311022 is a wasteful number, since it uses less digits than its factorization.

121031311022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17658667.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121031311022 its reverse (220113130121), we get a palindrome (341144441143).

The spelling of 121031311022 in words is "one hundred twenty-one billion, thirty-one million, three hundred eleven thousand, twenty-two".