214612849921 has 4 divisors (see below), whose sum is σ = 217198546992. Its totient is φ = 212027152852.

The previous prime is 214612849909. The next prime is 214612849933. The reversal of 214612849921 is 129948216412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (214612849909) and next prime (214612849933).

It is a cyclic number.

It is not a de Polignac number, because 214612849921 - 2²⁹ = 214075979009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214612849721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292848411 + ... + 1292848576.

It is an arithmetic number, because the mean of its divisors is an integer number (54299636748).

Almost surely, 2^214612849921 is an apocalyptic number.

It is an amenable number.

214612849921 is a deficient number, since it is larger than the sum of its proper divisors (2585697071).

214612849921 is an equidigital number, since it uses as much as digits as its factorization.

214612849921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585697070.

The product of its digits is 497664, while the sum is 49.

The spelling of 214612849921 in words is "two hundred fourteen billion, six hundred twelve million, eight hundred forty-nine thousand, nine hundred twenty-one".