12220111097 has 2 divisors, whose sum is σ = 12220111098. Its totient is φ = 12220111096.

The previous prime is 12220111087. The next prime is 12220111103. The reversal of 12220111097 is 79011102221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8817022201 + 3403088896 = 93899^2 + 58336^2 .

It is an emirp because it is prime and its reverse (79011102221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12220111097 - 2⁴ = 12220111081 is a prime.

It is a super-2 number, since 2×12220111097² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12220111087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110055548 + 6110055549.

It is an arithmetic number, because the mean of its divisors is an integer number (6110055549).

Almost surely, 2^12220111097 is an apocalyptic number.

It is an amenable number.

12220111097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220111097 is an equidigital number, since it uses as much as digits as its factorization.

12220111097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 12220111097 in words is "twelve billion, two hundred twenty million, one hundred eleven thousand, ninety-seven".