20022551071097 has 2 divisors, whose sum is σ = 20022551071098. Its totient is φ = 20022551071096.

The previous prime is 20022551071067. The next prime is 20022551071121. The reversal of 20022551071097 is 79017015522002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16767518073856 + 3255032997241 = 4094816^2 + 1804171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022551071097 is a prime.

It is not a weakly prime, because it can be changed into another prime (20022551071007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011275535548 + 10011275535549.

It is an arithmetic number, because the mean of its divisors is an integer number (10011275535549).

Almost surely, 2^{20022551071097} is an apocalyptic number.

It is an amenable number.

20022551071097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022551071097 is an equidigital number, since it uses as much as digits as its factorization.

20022551071097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 41.

Adding to 20022551071097 its reverse (79017015522002), we get a palindrome (99039566593099).

The spelling of 20022551071097 in words is "twenty trillion, twenty-two billion, five hundred fifty-one million, seventy-one thousand, ninety-seven".