12220000209997 has 2 divisors, whose sum is σ = 12220000209998. Its totient is φ = 12220000209996.

The previous prime is 12220000209913. The next prime is 12220000210003. The reversal of 12220000209997 is 79990200002221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8098913447881 + 4121086762116 = 2845859^2 + 2030046^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220000209997 - 2¹¹ = 12220000207949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220000209097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110000104998 + 6110000104999.

It is an arithmetic number, because the mean of its divisors is an integer number (6110000104999).

Almost surely, 2^{12220000209997} is an apocalyptic number.

It is an amenable number.

12220000209997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220000209997 is an equidigital number, since it uses as much as digits as its factorization.

12220000209997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 12220000209997 in words is "twelve trillion, two hundred twenty billion, two hundred nine thousand, nine hundred ninety-seven".