121090470 has 16 divisors (see below), whose sum is σ = 290617200. Its totient is φ = 32290784.

The previous prime is 121090447. The next prime is 121090481. The reversal of 121090470 is 74090121.

It is a self number, because there is not a number n which added to its sum of digits gives 121090470.

It is a congruent 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, 2018145 + ... + 2018204.

It is an arithmetic number, because the mean of its divisors is an integer number (18163575).

Almost surely, 2^121090470 is an apocalyptic number.

121090470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121090470 is an abundant number, since it is smaller than the sum of its proper divisors (169526730).

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

121090470 is a wasteful number, since it uses less digits than its factorization.

121090470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036359.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 121090470 is about 11004.1115043424. Note that the first 3 decimals coincide. The cubic root of 121090470 is about 494.7319842847.

The spelling of 121090470 in words is "one hundred twenty-one million, ninety thousand, four hundred seventy".