2222101997 has 2 divisors, whose sum is σ = 2222101998. Its totient is φ = 2222101996.

The previous prime is 2222101993. The next prime is 2222102021. The reversal of 2222101997 is 7991012222.

2222101997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2029142116 + 192959881 = 45046^2 + 13891^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222101997 - 2² = 2222101993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222101993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111050998 + 1111050999.

It is an arithmetic number, because the mean of its divisors is an integer number (1111050999).

Almost surely, 2^2222101997 is an apocalyptic number.

It is an amenable number.

2222101997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222101997 is an equidigital number, since it uses as much as digits as its factorization.

2222101997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 2222101997 is about 47139.1768808069. The cubic root of 2222101997 is about 1304.9323466736.

The spelling of 2222101997 in words is "two billion, two hundred twenty-two million, one hundred one thousand, nine hundred ninety-seven".