121609974110 has 16 divisors (see below), whose sum is σ = 220107337632. Its totient is φ = 48375237600.

The previous prime is 121609974041. The next prime is 121609974131. The reversal of 121609974110 is 11479906121.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 33592106 + ... + 33595725.

It is an arithmetic number, because the mean of its divisors is an integer number (13756708602).

Almost surely, 2^121609974110 is an apocalyptic number.

121609974110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121609974110 is a deficient number, since it is larger than the sum of its proper divisors (98497363522).

121609974110 is a wasteful number, since it uses less digits than its factorization.

121609974110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67188019.

The product of its (nonzero) digits is 27216, while the sum is 41.

The spelling of 121609974110 in words is "one hundred twenty-one billion, six hundred nine million, nine hundred seventy-four thousand, one hundred ten".