121550472986 has 16 divisors (see below), whose sum is σ = 185403034080. Its totient is φ = 59757974640.

The previous prime is 121550472983. The next prime is 121550473027. The reversal of 121550472986 is 689274055121.

It is not an unprimeable number, because it can be changed into a prime (121550472983) 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, 2099576 + ... + 2156691.

It is an arithmetic number, because the mean of its divisors is an integer number (11587689630).

Almost surely, 2^121550472986 is an apocalyptic number.

121550472986 is a deficient number, since it is larger than the sum of its proper divisors (63852561094).

121550472986 is a wasteful number, since it uses less digits than its factorization.

121550472986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256509.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 121550472986 in words is "one hundred twenty-one billion, five hundred fifty million, four hundred seventy-two thousand, nine hundred eighty-six".