121200985 has 8 divisors (see below), whose sum is σ = 145622016. Its totient is φ = 96840240.

The previous prime is 121200971. The next prime is 121200991. The reversal of 121200985 is 589002121.

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

It is not a de Polignac number, because 121200985 - 2⁵ = 121200953 is a prime.

It is a Duffinian 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, 10521 + ... + 18790.

It is an arithmetic number, because the mean of its divisors is an integer number (18202752).

Almost surely, 2^121200985 is an apocalyptic number.

It is an amenable number.

121200985 is a deficient number, since it is larger than the sum of its proper divisors (24421031).

121200985 is an equidigital number, since it uses as much as digits as its factorization.

121200985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30143.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 121200985 is about 11009.1318912982. The cubic root of 121200985 is about 494.8824466629.

The spelling of 121200985 in words is "one hundred twenty-one million, two hundred thousand, nine hundred eighty-five".