2101222111097 has 2 divisors, whose sum is σ = 2101222111098. Its totient is φ = 2101222111096.

The previous prime is 2101222111081. The next prime is 2101222111127. The reversal of 2101222111097 is 7901112221012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1117800822121 + 983421288976 = 1057261^2 + 991676^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101222111097 - 2⁴ = 2101222111081 is a prime.

It is a super-3 number, since 3×2101222111097³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2101222111397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050611055548 + 1050611055549.

It is an arithmetic number, because the mean of its divisors is an integer number (1050611055549).

Almost surely, 2^{2101222111097} is an apocalyptic number.

It is an amenable number.

2101222111097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101222111097 is an equidigital number, since it uses as much as digits as its factorization.

2101222111097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 2101222111097 in words is "two trillion, one hundred one billion, two hundred twenty-two million, one hundred eleven thousand, ninety-seven".