213332232000021 has 4 divisors (see below), whose sum is σ = 284442976000032. Its totient is φ = 142221488000012.

The previous prime is 213332231999911. The next prime is 213332232000067. The reversal of 213332232000021 is 120000232233312.

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 a cyclic number.

It is not a de Polignac number, because 213332232000021 - 2¹⁷ = 213332231868949 is a prime.

It is a super-2 number, since 2×213332232000021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213332231999955 and 213332232000000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213332232000421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35555372000001 + ... + 35555372000006.

It is an arithmetic number, because the mean of its divisors is an integer number (71110744000008).

Almost surely, 2^{213332232000021} is an apocalyptic number.

It is an amenable number.

213332232000021 is a deficient number, since it is larger than the sum of its proper divisors (71110744000011).

213332232000021 is an equidigital number, since it uses as much as digits as its factorization.

213332232000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71110744000010.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 213332232000021 its reverse (120000232233312), we get a palindrome (333332464233333).

The spelling of 213332232000021 in words is "two hundred thirteen trillion, three hundred thirty-two billion, two hundred thirty-two million, twenty-one", and thus it is an aban number.