912100121 has 8 divisors (see below), whose sum is σ = 967360704. Its totient is φ = 858139920.

The previous prime is 912100081. The next prime is 912100129. The reversal of 912100121 is 121001219.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-912100121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 912100121.

It is not an unprimeable number, because it can be changed into a prime (912100129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323651 + ... + 326456.

It is an arithmetic number, because the mean of its divisors is an integer number (120920088).

Almost surely, 2^912100121 is an apocalyptic number.

It is an amenable number.

912100121 is a deficient number, since it is larger than the sum of its proper divisors (55260583).

912100121 is a wasteful number, since it uses less digits than its factorization.

912100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650191.

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

The square root of 912100121 is about 30200.9953643916. The cubic root of 912100121 is about 969.7970032572.

The spelling of 912100121 in words is "nine hundred twelve million, one hundred thousand, one hundred twenty-one".