22221122100997 has 2 divisors, whose sum is σ = 22221122100998. Its totient is φ = 22221122100996.

The previous prime is 22221122100953. The next prime is 22221122101037. The reversal of 22221122100997 is 79900122112222.

It is an a-pointer prime, because the next prime (22221122101037) can be obtained adding 22221122100997 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19440612540801 + 2780509560196 = 4409151^2 + 1667486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22221122100997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221122104997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110561050498 + 11110561050499.

It is an arithmetic number, because the mean of its divisors is an integer number (11110561050499).

Almost surely, 2^{22221122100997} is an apocalyptic number.

It is an amenable number.

22221122100997 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221122100997 is an equidigital number, since it uses as much as digits as its factorization.

22221122100997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 22221122100997 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred thousand, nine hundred ninety-seven".