121819290700 has 36 divisors (see below), whose sum is σ = 275841251280. Its totient is φ = 46609119040.

The previous prime is 121819290689. The next prime is 121819290707. The reversal of 121819290700 is 7092918121.

It is a super-2 number, since 2×121819290700² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121819290707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26480155 + ... + 26484754.

It is an arithmetic number, because the mean of its divisors is an integer number (7662256980).

Almost surely, 2^121819290700 is an apocalyptic number.

121819290700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121819290700 is an abundant number, since it is smaller than the sum of its proper divisors (154021960580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121819290700 is a wasteful number, since it uses less digits than its factorization.

121819290700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52964946 (or 52964939 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 40.

The spelling of 121819290700 in words is "one hundred twenty-one billion, eight hundred nineteen million, two hundred ninety thousand, seven hundred".