22011010002161 has 2 divisors, whose sum is σ = 22011010002162. Its totient is φ = 22011010002160.

The previous prime is 22011010002011. The next prime is 22011010002167. The reversal of 22011010002161 is 16120001011022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11664854698225 + 10346155303936 = 3415385^2 + 3216544^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011010002161 - 2²⁶ = 22010942893297 is a prime.

It is a super-2 number, since 2×22011010002161² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22011010002167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005505001080 + 11005505001081.

It is an arithmetic number, because the mean of its divisors is an integer number (11005505001081).

Almost surely, 2^{22011010002161} is an apocalyptic number.

It is an amenable number.

22011010002161 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011010002161 is an equidigital number, since it uses as much as digits as its factorization.

22011010002161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 22011010002161 its reverse (16120001011022), we get a palindrome (38131011013183).

The spelling of 22011010002161 in words is "twenty-two trillion, eleven billion, ten million, two thousand, one hundred sixty-one".