121116090 has 64 divisors (see below), whose sum is σ = 297271296. Its totient is φ = 31574592.

The previous prime is 121116067. The next prime is 121116103. The reversal of 121116090 is 90611121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316039 + ... + 316421.

It is an arithmetic number, because the mean of its divisors is an integer number (4644864).

Almost surely, 2^121116090 is an apocalyptic number.

121116090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121116090 is an abundant number, since it is smaller than the sum of its proper divisors (176155206).

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

121116090 is a wasteful number, since it uses less digits than its factorization.

121116090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 121116090 is about 11005.2755531154. The cubic root of 121116090 is about 494.7668731840.

The spelling of 121116090 in words is "one hundred twenty-one million, one hundred sixteen thousand, ninety".