22112220000001 has 2 divisors, whose sum is σ = 22112220000002. Its totient is φ = 22112220000000.

The previous prime is 22112219999999. The next prime is 22112220000023. The reversal of 22112220000001 is 10000002221122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19961245775601 + 2150974224400 = 4467801^2 + 1466620^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112220000001 - 2¹ = 22112219999999 is a prime.

Together with 22112219999999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22112220000071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056110000000 + 11056110000001.

It is an arithmetic number, because the mean of its divisors is an integer number (11056110000001).

Almost surely, 2^{22112220000001} is an apocalyptic number.

It is an amenable number.

22112220000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112220000001 is an equidigital number, since it uses as much as digits as its factorization.

22112220000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22112220000001 its reverse (10000002221122), we get a palindrome (32112222221123).

The spelling of 22112220000001 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty million, one", and thus it is an aban number.