2212220219917 has 2 divisors, whose sum is σ = 2212220219918. Its totient is φ = 2212220219916.

The previous prime is 2212220219903. The next prime is 2212220219933. The reversal of 2212220219917 is 7199120222122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2206728076036 + 5492143881 = 1485506^2 + 74109^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212220219917 - 2¹⁹ = 2212219695629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2212220219917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212220219947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106110109958 + 1106110109959.

It is an arithmetic number, because the mean of its divisors is an integer number (1106110109959).

Almost surely, 2^{2212220219917} is an apocalyptic number.

It is an amenable number.

2212220219917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212220219917 is an equidigital number, since it uses as much as digits as its factorization.

2212220219917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 2212220219917 in words is "two trillion, two hundred twelve billion, two hundred twenty million, two hundred nineteen thousand, nine hundred seventeen".