22102012212109 has 2 divisors, whose sum is σ = 22102012212110. Its totient is φ = 22102012212108.

The previous prime is 22102012212047. The next prime is 22102012212127. The reversal of 22102012212109 is 90121221020122.

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., 14509661814025 + 7592350398084 = 3809155^2 + 2755422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22102012212109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22102012212209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051006106054 + 11051006106055.

It is an arithmetic number, because the mean of its divisors is an integer number (11051006106055).

Almost surely, 2^{22102012212109} is an apocalyptic number.

It is an amenable number.

22102012212109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102012212109 is an equidigital number, since it uses as much as digits as its factorization.

22102012212109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 22102012212109 in words is "twenty-two trillion, one hundred two billion, twelve million, two hundred twelve thousand, one hundred nine".