121992385348 has 12 divisors (see below), whose sum is σ = 213495101820. Its totient is φ = 60993784832.

The previous prime is 121992385327. The next prime is 121992385379. The reversal of 121992385348 is 843583299121.

It can be written as a sum of positive squares in 2 ways, for example, as 58826621764 + 63165763584 = 242542^2 + 251328^2 .

It is a super-2 number, since 2×121992385348² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485461 + ... + 692572.

It is an arithmetic number, because the mean of its divisors is an integer number (17791258485).

Almost surely, 2^121992385348 is an apocalyptic number.

It is an amenable number.

121992385348 is a deficient number, since it is larger than the sum of its proper divisors (91502716472).

121992385348 is a wasteful number, since it uses less digits than its factorization.

121992385348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203926 (or 1203924 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 55.

The spelling of 121992385348 in words is "one hundred twenty-one billion, nine hundred ninety-two million, three hundred eighty-five thousand, three hundred forty-eight".