121161206 has 16 divisors (see below), whose sum is σ = 191600640. Its totient is φ = 57377640.

The previous prime is 121161197. The next prime is 121161221. The reversal of 121161206 is 602161121.

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, 17876 + ... + 23703.

It is an arithmetic number, because the mean of its divisors is an integer number (11975040).

Almost surely, 2^121161206 is an apocalyptic number.

121161206 is a deficient number, since it is larger than the sum of its proper divisors (70439434).

121161206 is a wasteful number, since it uses less digits than its factorization.

121161206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41659.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 121161206 is about 11007.3251064916. The cubic root of 121161206 is about 494.8282994601.

The spelling of 121161206 in words is "one hundred twenty-one million, one hundred sixty-one thousand, two hundred six".