121021480 has 32 divisors (see below), whose sum is σ = 273020040. Its totient is φ = 48280320.

The previous prime is 121021477. The next prime is 121021493. The reversal of 121021480 is 84120121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118069956 + 2951524 = 10866^2 + 1718^2 .

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, 12070 + ... + 19690.

Almost surely, 2^121021480 is an apocalyptic number.

121021480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121021480 is an abundant number, since it is smaller than the sum of its proper divisors (151998560).

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

121021480 is a wasteful number, since it uses less digits than its factorization.

121021480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8029 (or 8025 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 121021480 is about 11000.9763203090. The cubic root of 121021480 is about 494.6380103503.

The spelling of 121021480 in words is "one hundred twenty-one million, twenty-one thousand, four hundred eighty".