213867214221 has 8 divisors (see below), whose sum is σ = 290536593120. Its totient is φ = 139887989072.

The previous prime is 213867214207. The next prime is 213867214229. The reversal of 213867214221 is 122412768312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 213867214221 - 2⁵ = 213867214189 is a prime.

It is a super-2 number, since 2×213867214221² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213867214221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213867214229) 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, 672538251 + ... + 672538568.

It is an arithmetic number, because the mean of its divisors is an integer number (36317074140).

Almost surely, 2^213867214221 is an apocalyptic number.

It is an amenable number.

213867214221 is a deficient number, since it is larger than the sum of its proper divisors (76669378899).

213867214221 is a wasteful number, since it uses less digits than its factorization.

213867214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345076875.

The product of its digits is 64512, while the sum is 39.

The spelling of 213867214221 in words is "two hundred thirteen billion, eight hundred sixty-seven million, two hundred fourteen thousand, two hundred twenty-one".