12222797789 has 2 divisors, whose sum is σ = 12222797790. Its totient is φ = 12222797788.

The previous prime is 12222797777. The next prime is 12222797801. The reversal of 12222797789 is 98779722221.

It is a balanced prime because it is at equal distance from previous prime (12222797777) and next prime (12222797801).

It can be written as a sum of positive squares in only one way, i.e., 11498272900 + 724524889 = 107230^2 + 26917^2 .

It is an emirp because it is prime and its reverse (98779722221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12222797789 - 2²⁴ = 12206020573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222797729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111398894 + 6111398895.

It is an arithmetic number, because the mean of its divisors is an integer number (6111398895).

Almost surely, 2^12222797789 is an apocalyptic number.

It is an amenable number.

12222797789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222797789 is an equidigital number, since it uses as much as digits as its factorization.

12222797789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 56.

The spelling of 12222797789 in words is "twelve billion, two hundred twenty-two million, seven hundred ninety-seven thousand, seven hundred eighty-nine".