22201020122081 has 2 divisors, whose sum is σ = 22201020122082. Its totient is φ = 22201020122080.

The previous prime is 22201020122027. The next prime is 22201020122131. The reversal of 22201020122081 is 18022102010222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18402384040000 + 3798636082081 = 4289800^2 + 1949009^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201020122081 - 2¹⁴ = 22201020105697 is a prime.

It is a super-2 number, since 2×22201020122081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22201020121081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100510061040 + 11100510061041.

It is an arithmetic number, because the mean of its divisors is an integer number (11100510061041).

Almost surely, 2^{22201020122081} is an apocalyptic number.

It is an amenable number.

22201020122081 is a deficient number, since it is larger than the sum of its proper divisors (1).

22201020122081 is an equidigital number, since it uses as much as digits as its factorization.

22201020122081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 23.

The spelling of 22201020122081 in words is "twenty-two trillion, two hundred one billion, twenty million, one hundred twenty-two thousand, eighty-one".