121452213 has 16 divisors (see below), whose sum is σ = 169482240. Its totient is φ = 77216304.

The previous prime is 121452181. The next prime is 121452229. The reversal of 121452213 is 312254121.

It is not a de Polignac number, because 121452213 - 2⁵ = 121452181 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121452213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121452263) 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 15 ways as a sum of consecutive naturals, for example, 22320 + ... + 27222.

It is an arithmetic number, because the mean of its divisors is an integer number (10592640).

Almost surely, 2^121452213 is an apocalyptic number.

It is an amenable number.

121452213 is a deficient number, since it is larger than the sum of its proper divisors (48030027).

121452213 is a wasteful number, since it uses less digits than its factorization.

121452213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288.

The product of its digits is 480, while the sum is 21.

The square root of 121452213 is about 11020.5359670027. The cubic root of 121452213 is about 495.2241449932.

The spelling of 121452213 in words is "one hundred twenty-one million, four hundred fifty-two thousand, two hundred thirteen".