121000898 has 16 divisors (see below), whose sum is σ = 185867136. Its totient is φ = 59062080.

The previous prime is 121000897. The next prime is 121000921. The reversal of 121000898 is 898000121.

It is a self number, because there is not a number n which added to its sum of digits gives 121000898.

It is not an unprimeable number, because it can be changed into a prime (121000897) 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, 10490 + ... + 18762.

It is an arithmetic number, because the mean of its divisors is an integer number (11616696).

Almost surely, 2^121000898 is an apocalyptic number.

121000898 is a deficient number, since it is larger than the sum of its proper divisors (64866238).

121000898 is a wasteful number, since it uses less digits than its factorization.

121000898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8449.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 121000898 is about 11000.0408181061. The cubic root of 121000898 is about 494.6099678994.

The spelling of 121000898 in words is "one hundred twenty-one million, eight hundred ninety-eight", and thus it is an aban number.