20221022120177 has 2 divisors, whose sum is σ = 20221022120178. Its totient is φ = 20221022120176.

The previous prime is 20221022120153. The next prime is 20221022120213. The reversal of 20221022120177 is 77102122012202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19481489198656 + 739532921521 = 4413784^2 + 859961^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221022120177 - 2¹⁰ = 20221022119153 is a prime.

It is a super-2 number, since 2×20221022120177² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20221022120477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110511060088 + 10110511060089.

It is an arithmetic number, because the mean of its divisors is an integer number (10110511060089).

Almost surely, 2^{20221022120177} is an apocalyptic number.

It is an amenable number.

20221022120177 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221022120177 is an equidigital number, since it uses as much as digits as its factorization.

20221022120177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 29.

Adding to 20221022120177 its reverse (77102122012202), we get a palindrome (97323144132379).

The spelling of 20221022120177 in words is "twenty trillion, two hundred twenty-one billion, twenty-two million, one hundred twenty thousand, one hundred seventy-seven".