212333332010021 has 4 divisors (see below), whose sum is σ = 214435642228044. Its totient is φ = 210231021792000.

The previous prime is 212333332010003. The next prime is 212333332010027. The reversal of 212333332010021 is 120010233333212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 204769517452900 + 7563814557121 = 14309770^2 + 2750239^2 .

It is a cyclic number.

It is not a de Polignac number, because 212333332010021 - 2¹⁴ = 212333331993637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212333332010027) 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, 1051155108860 + ... + 1051155109061.

It is an arithmetic number, because the mean of its divisors is an integer number (53608910557011).

Almost surely, 2^{212333332010021} is an apocalyptic number.

It is an amenable number.

212333332010021 is a deficient number, since it is larger than the sum of its proper divisors (2102310218023).

212333332010021 is a wasteful number, since it uses less digits than its factorization.

212333332010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102310218022.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 212333332010021 its reverse (120010233333212), we get a palindrome (332343565343233).

The spelling of 212333332010021 in words is "two hundred twelve trillion, three hundred thirty-three billion, three hundred thirty-two million, ten thousand, twenty-one".