20221102015729 has 2 divisors, whose sum is σ = 20221102015730. Its totient is φ = 20221102015728.

The previous prime is 20221102015691. The next prime is 20221102015783. The reversal of 20221102015729 is 92751020112202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12274876616704 + 7946225399025 = 3503552^2 + 2818905^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221102015729 - 2²⁷ = 20220967798001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20221102015694 and 20221102015703.

It is not a weakly prime, because it can be changed into another prime (20221102015129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110551007864 + 10110551007865.

It is an arithmetic number, because the mean of its divisors is an integer number (10110551007865).

Almost surely, 2^{20221102015729} is an apocalyptic number.

It is an amenable number.

20221102015729 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221102015729 is an equidigital number, since it uses as much as digits as its factorization.

20221102015729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 20221102015729 in words is "twenty trillion, two hundred twenty-one billion, one hundred two million, fifteen thousand, seven hundred twenty-nine".