222021211589 has 2 divisors, whose sum is σ = 222021211590. Its totient is φ = 222021211588.

The previous prime is 222021211487. The next prime is 222021211591. The reversal of 222021211589 is 985112120222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215814135364 + 6207076225 = 464558^2 + 78785^2 .

It is a cyclic number.

It is not a de Polignac number, because 222021211589 - 2⁸ = 222021211333 is a prime.

Together with 222021211591, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222021217589) 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, 111010605794 + 111010605795.

It is an arithmetic number, because the mean of its divisors is an integer number (111010605795).

Almost surely, 2^222021211589 is an apocalyptic number.

It is an amenable number.

222021211589 is a deficient number, since it is larger than the sum of its proper divisors (1).

222021211589 is an equidigital number, since it uses as much as digits as its factorization.

222021211589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 222021211589 in words is "two hundred twenty-two billion, twenty-one million, two hundred eleven thousand, five hundred eighty-nine".