2221212102097 has 2 divisors, whose sum is σ = 2221212102098. Its totient is φ = 2221212102096.

The previous prime is 2221212102079. The next prime is 2221212102169. The reversal of 2221212102097 is 7902012121222.

Together with previous prime (2221212102079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1835615812801 + 385596289296 = 1354849^2 + 620964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221212102097 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221212106097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110606051048 + 1110606051049.

It is an arithmetic number, because the mean of its divisors is an integer number (1110606051049).

Almost surely, 2^{2221212102097} is an apocalyptic number.

It is an amenable number.

2221212102097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221212102097 is an equidigital number, since it uses as much as digits as its factorization.

2221212102097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 2221212102097 in words is "two trillion, two hundred twenty-one billion, two hundred twelve million, one hundred two thousand, ninety-seven".