121154432313212 has 24 divisors (see below), whose sum is σ = 214724304936960. Its totient is φ = 59804775529200.

The previous prime is 121154432313203. The next prime is 121154432313247. The reversal of 121154432313212 is 212313234451121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14721164 + ... + 21424787.

It is an arithmetic number, because the mean of its divisors is an integer number (8946846039040).

Almost surely, 2^{121154432313212} is an apocalyptic number.

It is an amenable number.

121154432313212 is a deficient number, since it is larger than the sum of its proper divisors (93569872623748).

121154432313212 is a wasteful number, since it uses less digits than its factorization.

121154432313212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36156641 (or 36156639 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

Adding to 121154432313212 its reverse (212313234451121), we get a palindrome (333467666764333).

The spelling of 121154432313212 in words is "one hundred twenty-one trillion, one hundred fifty-four billion, four hundred thirty-two million, three hundred thirteen thousand, two hundred twelve".