121100961 has 8 divisors (see below), whose sum is σ = 161659360. Its totient is φ = 80638272.

The previous prime is 121100939. The next prime is 121101011. The reversal of 121100961 is 169001121.

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

It is not a de Polignac number, because 121100961 - 2⁵ = 121100929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121100561) 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, 20920 + ... + 26073.

It is an arithmetic number, because the mean of its divisors is an integer number (20207420).

Almost surely, 2^121100961 is an apocalyptic number.

It is an amenable number.

121100961 is a deficient number, since it is larger than the sum of its proper divisors (40558399).

121100961 is an equidigital number, since it uses as much as digits as its factorization.

121100961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47855.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 121100961 is about 11004.5881794822. The cubic root of 121100961 is about 494.7462713528.

The spelling of 121100961 in words is "one hundred twenty-one million, one hundred thousand, nine hundred sixty-one".