213214012021 has 8 divisors (see below), whose sum is σ = 213565363200. Its totient is φ = 212862894000.

The previous prime is 213214012013. The next prime is 213214012069. The reversal of 213214012021 is 120210412312.

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 213214012021 - 2³ = 213214012013 is a prime.

It is a super-2 number, since 2×213214012021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213214012021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213214012001) 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, 1821771 + ... + 1935271.

It is an arithmetic number, because the mean of its divisors is an integer number (26695670400).

Almost surely, 2^213214012021 is an apocalyptic number.

It is an amenable number.

213214012021 is a deficient number, since it is larger than the sum of its proper divisors (351351179).

213214012021 is a wasteful number, since it uses less digits than its factorization.

213214012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116579.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 213214012021 its reverse (120210412312), we get a palindrome (333424424333).

The spelling of 213214012021 in words is "two hundred thirteen billion, two hundred fourteen million, twelve thousand, twenty-one".