121017894 has 8 divisors (see below), whose sum is σ = 242035800. Its totient is φ = 40339296.

The previous prime is 121017877. The next prime is 121017929. The reversal of 121017894 is 498710121.

It is a sphenic number, since it is the product of 3 distinct primes.

121017894 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10084819 + ... + 10084830.

It is an arithmetic number, because the mean of its divisors is an integer number (30254475).

Almost surely, 2^121017894 is an apocalyptic number.

121017894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121017894 is a wasteful number, since it uses less digits than its factorization.

121017894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20169654.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 121017894 is about 11000.8133335677. The cubic root of 121017894 is about 494.6331247453.

The spelling of 121017894 in words is "one hundred twenty-one million, seventeen thousand, eight hundred ninety-four".