222210219989 has 2 divisors, whose sum is σ = 222210219990. Its totient is φ = 222210219988.

The previous prime is 222210219911. The next prime is 222210220093. The reversal of 222210219989 is 989912012222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147033902500 + 75176317489 = 383450^2 + 274183^2 .

It is a cyclic number.

It is not a de Polignac number, because 222210219989 - 2¹² = 222210215893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222210219389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111105109994 + 111105109995.

It is an arithmetic number, because the mean of its divisors is an integer number (111105109995).

Almost surely, 2^222210219989 is an apocalyptic number.

It is an amenable number.

222210219989 is a deficient number, since it is larger than the sum of its proper divisors (1).

222210219989 is an equidigital number, since it uses as much as digits as its factorization.

222210219989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 222210219989 in words is "two hundred twenty-two billion, two hundred ten million, two hundred nineteen thousand, nine hundred eighty-nine".