121110290 has 16 divisors (see below), whose sum is σ = 249141312. Its totient is φ = 41523504.

The previous prime is 121110289. The next prime is 121110323. The reversal of 121110290 is 92011121.

It is a Curzon 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, 865004 + ... + 865143.

It is an arithmetic number, because the mean of its divisors is an integer number (15571332).

Almost surely, 2^121110290 is an apocalyptic number.

121110290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121110290 is an abundant number, since it is smaller than the sum of its proper divisors (128031022).

121110290 is a wasteful number, since it uses less digits than its factorization.

121110290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730161.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 121110290 is about 11005.0120399752. The cubic root of 121110290 is about 494.7589752692.

The spelling of 121110290 in words is "one hundred twenty-one million, one hundred ten thousand, two hundred ninety".