121214893 has 6 divisors (see below), whose sum is σ = 124101294. Its totient is φ = 118394136.

The previous prime is 121214887. The next prime is 121214909. The reversal of 121214893 is 398412121.

It can be written as a sum of positive squares in only one way, i.e., 111894084 + 9320809 = 10578^2 + 3053^2 .

It is not a de Polignac number, because 121214893 - 2¹⁷ = 121083821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121214593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30930 + ... + 34627.

It is an arithmetic number, because the mean of its divisors is an integer number (20683549).

Almost surely, 2^121214893 is an apocalyptic number.

It is an amenable number.

121214893 is a deficient number, since it is larger than the sum of its proper divisors (2886401).

121214893 is an frugal number, since it uses more digits than its factorization.

121214893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65643 (or 65600 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 121214893 is about 11009.7635306123. The cubic root of 121214893 is about 494.9013754469.

The spelling of 121214893 in words is "one hundred twenty-one million, two hundred fourteen thousand, eight hundred ninety-three".