121214940 has 96 divisors (see below), whose sum is σ = 423166464. Its totient is φ = 25186560.

The previous prime is 121214917. The next prime is 121214957. The reversal of 121214940 is 49412121.

It is a self number, because there is not a number n which added to its sum of digits gives 121214940.

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 31 ways as a sum of consecutive naturals, for example, 8499 + ... + 17738.

It is an arithmetic number, because the mean of its divisors is an integer number (4407984).

Almost surely, 2^121214940 is an apocalyptic number.

121214940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121214940 is an abundant number, since it is smaller than the sum of its proper divisors (301951524).

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

121214940 is a wasteful number, since it uses less digits than its factorization.

121214940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26267 (or 26265 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 121214940 is about 11009.7656650812. The cubic root of 121214940 is about 494.9014394115.

The spelling of 121214940 in words is "one hundred twenty-one million, two hundred fourteen thousand, nine hundred forty".