213332213021 has 8 divisors (see below), whose sum is σ = 220498804224. Its totient is φ = 206183428560.

The previous prime is 213332212999. The next prime is 213332213033. The reversal of 213332213021 is 120312233312.

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 213332213021 - 2¹⁸ = 213331950877 is a prime.

It is a super-2 number, since 2×213332213021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213332233021) 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, 4427321 + ... + 4475246.

It is an arithmetic number, because the mean of its divisors is an integer number (27562350528).

Almost surely, 2^213332213021 is an apocalyptic number.

It is an amenable number.

213332213021 is a deficient number, since it is larger than the sum of its proper divisors (7166591203).

213332213021 is an equidigital number, since it uses as much as digits as its factorization.

213332213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8903371.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 213332213021 its reverse (120312233312), we get a palindrome (333644446333).

The spelling of 213332213021 in words is "two hundred thirteen billion, three hundred thirty-two million, two hundred thirteen thousand, twenty-one".