22720435097 has 2 divisors, whose sum is σ = 22720435098. Its totient is φ = 22720435096.

The previous prime is 22720435019. The next prime is 22720435099. The reversal of 22720435097 is 79053402722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12417982096 + 10302453001 = 111436^2 + 101501^2 .

It is a cyclic number.

It is not a de Polignac number, because 22720435097 - 2¹⁴ = 22720418713 is a prime.

Together with 22720435099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22720435099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11360217548 + 11360217549.

It is an arithmetic number, because the mean of its divisors is an integer number (11360217549).

Almost surely, 2^22720435097 is an apocalyptic number.

It is an amenable number.

22720435097 is a deficient number, since it is larger than the sum of its proper divisors (1).

22720435097 is an equidigital number, since it uses as much as digits as its factorization.

22720435097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 22720435097 in words is "twenty-two billion, seven hundred twenty million, four hundred thirty-five thousand, ninety-seven".