22112031202109 has 2 divisors, whose sum is σ = 22112031202110. Its totient is φ = 22112031202108.

The previous prime is 22112031202031. The next prime is 22112031202259. The reversal of 22112031202109 is 90120213021122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11852802984100 + 10259228218009 = 3442790^2 + 3203003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22112031202109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22112031205109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056015601054 + 11056015601055.

It is an arithmetic number, because the mean of its divisors is an integer number (11056015601055).

Almost surely, 2^{22112031202109} is an apocalyptic number.

It is an amenable number.

22112031202109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112031202109 is an equidigital number, since it uses as much as digits as its factorization.

22112031202109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 22112031202109 in words is "twenty-two trillion, one hundred twelve billion, thirty-one million, two hundred two thousand, one hundred nine".