122211101989 has 2 divisors, whose sum is σ = 122211101990. Its totient is φ = 122211101988.

The previous prime is 122211101981. The next prime is 122211102031. The reversal of 122211101989 is 989101112221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86474224225 + 35736877764 = 294065^2 + 189042^2 .

It is a cyclic number.

It is not a de Polignac number, because 122211101989 - 2³ = 122211101981 is a prime.

It is a super-2 number, since 2×122211101989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122211101981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61105550994 + 61105550995.

It is an arithmetic number, because the mean of its divisors is an integer number (61105550995).

Almost surely, 2^122211101989 is an apocalyptic number.

It is an amenable number.

122211101989 is a deficient number, since it is larger than the sum of its proper divisors (1).

122211101989 is an equidigital number, since it uses as much as digits as its factorization.

122211101989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 37.

The spelling of 122211101989 in words is "one hundred twenty-two billion, two hundred eleven million, one hundred one thousand, nine hundred eighty-nine".