121517330 has 16 divisors (see below), whose sum is σ = 238616064. Its totient is φ = 44188080.

The previous prime is 121517299. The next prime is 121517339. The reversal of 121517330 is 33715121.

It is a super-2 number, since 2×121517330² = 29532922980657800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121517296 and 121517305.

It is not an unprimeable number, because it can be changed into a prime (121517339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552242 + ... + 552461.

It is an arithmetic number, because the mean of its divisors is an integer number (14913504).

Almost surely, 2^121517330 is an apocalyptic number.

121517330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121517330 is a deficient number, since it is larger than the sum of its proper divisors (117098734).

121517330 is a wasteful number, since it uses less digits than its factorization.

121517330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104721.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 121517330 is about 11023.4899192588. The cubic root of 121517330 is about 495.3126345271.

The spelling of 121517330 in words is "one hundred twenty-one million, five hundred seventeen thousand, three hundred thirty".