2105222389 has 2 divisors, whose sum is σ = 2105222390. Its totient is φ = 2105222388.

The previous prime is 2105222347. The next prime is 2105222443. The reversal of 2105222389 is 9832225012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2038522500 + 66699889 = 45150^2 + 8167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105222389 is a prime.

It is a super-2 number, since 2×2105222389² = 8863922614293734642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105225389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052611194 + 1052611195.

It is an arithmetic number, because the mean of its divisors is an integer number (1052611195).

Almost surely, 2^2105222389 is an apocalyptic number.

It is an amenable number.

2105222389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105222389 is an equidigital number, since it uses as much as digits as its factorization.

2105222389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2105222389 is about 45882.7025032310. The cubic root of 2105222389 is about 1281.6398231514.

The spelling of 2105222389 in words is "two billion, one hundred five million, two hundred twenty-two thousand, three hundred eighty-nine".