22122222091919 has 2 divisors, whose sum is σ = 22122222091920. Its totient is φ = 22122222091918.

The previous prime is 22122222091877. The next prime is 22122222091951. The reversal of 22122222091919 is 91919022222122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22122222091919 - 2⁴⁰ = 21022710464143 is a prime.

It is a super-2 number, since 2×22122222091919² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22122222091919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22122222091219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061111045959 + 11061111045960.

It is an arithmetic number, because the mean of its divisors is an integer number (11061111045960).

Almost surely, 2^{22122222091919} is an apocalyptic number.

22122222091919 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122222091919 is an equidigital number, since it uses as much as digits as its factorization.

22122222091919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 22122222091919 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty-two million, ninety-one thousand, nine hundred nineteen".