22011221220097 has 2 divisors, whose sum is σ = 22011221220098. Its totient is φ = 22011221220096.

The previous prime is 22011221220073. The next prime is 22011221220137. The reversal of 22011221220097 is 79002212211022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21754910894656 + 256310325441 = 4664216^2 + 506271^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011221220097 - 2³¹ = 22009073736449 is a prime.

It is a super-3 number, since 3×22011221220097³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22011221220997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005610610048 + 11005610610049.

It is an arithmetic number, because the mean of its divisors is an integer number (11005610610049).

Almost surely, 2^{22011221220097} is an apocalyptic number.

It is an amenable number.

22011221220097 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011221220097 is an equidigital number, since it uses as much as digits as its factorization.

22011221220097 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 22011221220097 in words is "twenty-two trillion, eleven billion, two hundred twenty-one million, two hundred twenty thousand, ninety-seven".