212022220133 has 4 divisors (see below), whose sum is σ = 212049617388. Its totient is φ = 211994822880.

The previous prime is 212022220127. The next prime is 212022220141. The reversal of 212022220133 is 331022220212.

It is a happy number.

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 12375895009 + 199646325124 = 111247^2 + 446818^2 .

It is a cyclic number.

It is not a de Polignac number, because 212022220133 - 2¹⁴ = 212022203749 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 (262022220133) 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, 13687016 + ... + 13702497.

It is an arithmetic number, because the mean of its divisors is an integer number (53012404347).

Almost surely, 2^212022220133 is an apocalyptic number.

It is an amenable number.

212022220133 is a deficient number, since it is larger than the sum of its proper divisors (27397255).

212022220133 is an equidigital number, since it uses as much as digits as its factorization.

212022220133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27397254.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212022220133 its reverse (331022220212), we get a palindrome (543044440345).

The spelling of 212022220133 in words is "two hundred twelve billion, twenty-two million, two hundred twenty thousand, one hundred thirty-three".