121331311022212 has 48 divisors (see below), whose sum is σ = 217669602447360. Its totient is φ = 59159347576992.

The previous prime is 121331311022197. The next prime is 121331311022213. The reversal of 121331311022212 is 212220113133121.

It is not an unprimeable number, because it can be changed into a prime (121331311022213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92378613 + ... + 93682819.

It is an arithmetic number, because the mean of its divisors is an integer number (4534783384320).

Almost surely, 2^{121331311022212} is an apocalyptic number.

It is an amenable number.

121331311022212 is a deficient number, since it is larger than the sum of its proper divisors (96338291425148).

121331311022212 is a wasteful number, since it uses less digits than its factorization.

121331311022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307920 (or 1307918 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 121331311022212 its reverse (212220113133121), we get a palindrome (333551424155333).

The spelling of 121331311022212 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, three hundred eleven million, twenty-two thousand, two hundred twelve".