2101011222997 has 2 divisors, whose sum is σ = 2101011222998. Its totient is φ = 2101011222996.

The previous prime is 2101011222953. The next prime is 2101011223037. The reversal of 2101011222997 is 7992221101012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1676336130756 + 424675092241 = 1294734^2 + 651671^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101011222997 - 2¹¹ = 2101011220949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101011222097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050505611498 + 1050505611499.

It is an arithmetic number, because the mean of its divisors is an integer number (1050505611499).

Almost surely, 2^{2101011222997} is an apocalyptic number.

It is an amenable number.

2101011222997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101011222997 is an equidigital number, since it uses as much as digits as its factorization.

2101011222997 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 37.

The spelling of 2101011222997 in words is "two trillion, one hundred one billion, eleven million, two hundred twenty-two thousand, nine hundred ninety-seven".