121980700 has 18 divisors (see below), whose sum is σ = 264698336. Its totient is φ = 48792240.

The previous prime is 121980689. The next prime is 121980713. The reversal of 121980700 is 7089121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 609804 + ... + 610003.

Almost surely, 2^121980700 is an apocalyptic number.

121980700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121980700 is an abundant number, since it is smaller than the sum of its proper divisors (142717636).

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

121980700 is a wasteful number, since it uses less digits than its factorization.

121980700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219821 (or 1219814 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 121980700 is about 11044.4873126823. The cubic root of 121980700 is about 495.9414115240.

The spelling of 121980700 in words is "one hundred twenty-one million, nine hundred eighty thousand, seven hundred".