20322200129897 has 2 divisors, whose sum is σ = 20322200129898. Its totient is φ = 20322200129896.

The previous prime is 20322200129887. The next prime is 20322200130121. The reversal of 20322200129897 is 79892100222302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13285361618281 + 7036838511616 = 3644909^2 + 2652704^2 .

It is a cyclic number.

It is not a de Polignac number, because 20322200129897 - 2³⁴ = 20305020260713 is a prime.

It is not a weakly prime, because it can be changed into another prime (20322200129827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161100064948 + 10161100064949.

It is an arithmetic number, because the mean of its divisors is an integer number (10161100064949).

Almost surely, 2^{20322200129897} is an apocalyptic number.

It is an amenable number.

20322200129897 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322200129897 is an equidigital number, since it uses as much as digits as its factorization.

20322200129897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 20322200129897 in words is "twenty trillion, three hundred twenty-two billion, two hundred million, one hundred twenty-nine thousand, eight hundred ninety-seven".