12220101989 has 2 divisors, whose sum is σ = 12220101990. Its totient is φ = 12220101988.

The previous prime is 12220101979. The next prime is 12220102021. The reversal of 12220101989 is 98910102221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9602040100 + 2618061889 = 97990^2 + 51167^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220101989 - 2⁴ = 12220101973 is a prime.

It is a super-2 number, since 2×12220101989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220101919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110050994 + 6110050995.

It is an arithmetic number, because the mean of its divisors is an integer number (6110050995).

Almost surely, 2^12220101989 is an apocalyptic number.

It is an amenable number.

12220101989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220101989 is an equidigital number, since it uses as much as digits as its factorization.

12220101989 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 35.

The spelling of 12220101989 in words is "twelve billion, two hundred twenty million, one hundred one thousand, nine hundred eighty-nine".