121552206 has 16 divisors (see below), whose sum is σ = 244116048. Its totient is φ = 40348800.

The previous prime is 121552183. The next prime is 121552241. The reversal of 121552206 is 602255121.

It is a happy number.

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, 40585 + ... + 43476.

It is an arithmetic number, because the mean of its divisors is an integer number (15257253).

Almost surely, 2^121552206 is an apocalyptic number.

121552206 is an abundant number, since it is smaller than the sum of its proper divisors (122563842).

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

121552206 is a wasteful number, since it uses less digits than its factorization.

121552206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84307.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 121552206 is about 11025.0717004471. The cubic root of 121552206 is about 495.3600156183.

The spelling of 121552206 in words is "one hundred twenty-one million, five hundred fifty-two thousand, two hundred six".