22011212011097 has 2 divisors, whose sum is σ = 22011212011098. Its totient is φ = 22011212011096.

The previous prime is 22011212011073. The next prime is 22011212011127. The reversal of 22011212011097 is 79011021211022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12764406798361 + 9246805212736 = 3572731^2 + 3040856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22011212011097 is a prime.

It is a super-2 number, since 2×22011212011097² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22011212011297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005606005548 + 11005606005549.

It is an arithmetic number, because the mean of its divisors is an integer number (11005606005549).

Almost surely, 2^{22011212011097} is an apocalyptic number.

It is an amenable number.

22011212011097 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011212011097 is an equidigital number, since it uses as much as digits as its factorization.

22011212011097 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 22011212011097 in words is "twenty-two trillion, eleven billion, two hundred twelve million, eleven thousand, ninety-seven".