212223433025021 has 32 divisors (see below), whose sum is σ = 245491593177600. Its totient is φ = 181317542215680.

The previous prime is 212223433025011. The next prime is 212223433025027. The reversal of 212223433025021 is 120520334322212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212223433025021 - 2¹⁰ = 212223433023997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212223433025027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 963801425 + ... + 964021593.

It is an arithmetic number, because the mean of its divisors is an integer number (7671612286800).

Almost surely, 2^{212223433025021} is an apocalyptic number.

It is an amenable number.

212223433025021 is a deficient number, since it is larger than the sum of its proper divisors (33268160152579).

212223433025021 is a wasteful number, since it uses less digits than its factorization.

212223433025021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227669.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 212223433025021 its reverse (120520334322212), we get a palindrome (332743767347233).

The spelling of 212223433025021 in words is "two hundred twelve trillion, two hundred twenty-three billion, four hundred thirty-three million, twenty-five thousand, twenty-one".