121692241156 has 12 divisors (see below), whose sum is σ = 213098034240. Its totient is φ = 60807088520.

The previous prime is 121692241141. The next prime is 121692241189. The reversal of 121692241156 is 651142296121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9751000 + ... + 9763471.

It is an arithmetic number, because the mean of its divisors is an integer number (17758169520).

Almost surely, 2^121692241156 is an apocalyptic number.

It is an amenable number.

121692241156 is a deficient number, since it is larger than the sum of its proper divisors (91405793084).

121692241156 is a wasteful number, since it uses less digits than its factorization.

121692241156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19516034 (or 19516032 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The spelling of 121692241156 in words is "one hundred twenty-one billion, six hundred ninety-two million, two hundred forty-one thousand, one hundred fifty-six".