121961498475 has 12 divisors (see below), whose sum is σ = 201643010936. Its totient is φ = 65046132480.

The previous prime is 121961498459. The next prime is 121961498509. The reversal of 121961498475 is 574894169121.

It is not a de Polignac number, because 121961498475 - 2⁴ = 121961498459 is a prime.

It is a super-2 number, since 2×121961498475² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 813076582 + ... + 813076731.

Almost surely, 2^121961498475 is an apocalyptic number.

121961498475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121961498475 is a deficient number, since it is larger than the sum of its proper divisors (79681512461).

121961498475 is a wasteful number, since it uses less digits than its factorization.

121961498475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626153326 (or 1626153321 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 57.

The spelling of 121961498475 in words is "one hundred twenty-one billion, nine hundred sixty-one million, four hundred ninety-eight thousand, four hundred seventy-five".