20022053101591 has 2 divisors, whose sum is σ = 20022053101592. Its totient is φ = 20022053101590.

The previous prime is 20022053101549. The next prime is 20022053101643. The reversal of 20022053101591 is 19510135022002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022053101591 is a prime.

It is a super-2 number, since 2×20022053101591² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022053501591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011026550795 + 10011026550796.

It is an arithmetic number, because the mean of its divisors is an integer number (10011026550796).

Almost surely, 2^{20022053101591} is an apocalyptic number.

20022053101591 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022053101591 is an equidigital number, since it uses as much as digits as its factorization.

20022053101591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 20022053101591 its reverse (19510135022002), we get a palindrome (39532188123593).

The spelling of 20022053101591 in words is "twenty trillion, twenty-two billion, fifty-three million, one hundred one thousand, five hundred ninety-one".