222130213021 has 2 divisors, whose sum is σ = 222130213022. Its totient is φ = 222130213020.

The previous prime is 222130213013. The next prime is 222130213079. The reversal of 222130213021 is 120312031222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183086428996 + 39043784025 = 427886^2 + 197595^2 .

It is a cyclic number.

It is not a de Polignac number, because 222130213021 - 2³ = 222130213013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222130213021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222130210021) 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 as a sum of consecutive naturals, namely, 111065106510 + 111065106511.

It is an arithmetic number, because the mean of its divisors is an integer number (111065106511).

Almost surely, 2^222130213021 is an apocalyptic number.

It is an amenable number.

222130213021 is a deficient number, since it is larger than the sum of its proper divisors (1).

222130213021 is an equidigital number, since it uses as much as digits as its factorization.

222130213021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 222130213021 its reverse (120312031222), we get a palindrome (342442244243).

The spelling of 222130213021 in words is "two hundred twenty-two billion, one hundred thirty million, two hundred thirteen thousand, twenty-one".