121451120 has 40 divisors (see below), whose sum is σ = 322714464. Its totient is φ = 41640192.

The previous prime is 121451107. The next prime is 121451147. The reversal of 121451120 is 21154121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107879 + ... + 108998.

Almost surely, 2^121451120 is an apocalyptic number.

121451120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121451120 is an abundant number, since it is smaller than the sum of its proper divisors (201263344).

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

121451120 is a wasteful number, since it uses less digits than its factorization.

121451120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216897 (or 216891 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 121451120 is about 11020.4863776514. The cubic root of 121451120 is about 495.2226594114. Note that the first 3 decimals are identical.

The spelling of 121451120 in words is "one hundred twenty-one million, four hundred fifty-one thousand, one hundred twenty".