121165602 has 16 divisors (see below), whose sum is σ = 248881152. Its totient is φ = 39296880.

The previous prime is 121165553. The next prime is 121165609. The reversal of 121165602 is 206561121.

It is a super-2 number, since 2×121165602² = 29362206216044808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121165609) 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, 272674 + ... + 273117.

It is an arithmetic number, because the mean of its divisors is an integer number (15555072).

Almost surely, 2^121165602 is an apocalyptic number.

121165602 is an abundant number, since it is smaller than the sum of its proper divisors (127715550).

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

121165602 is a wasteful number, since it uses less digits than its factorization.

121165602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545833.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 121165602 is about 11007.5247898881. The cubic root of 121165602 is about 494.8342838809.

The spelling of 121165602 in words is "one hundred twenty-one million, one hundred sixty-five thousand, six hundred two".