1222914893 has 2 divisors, whose sum is σ = 1222914894. Its totient is φ = 1222914892.

The previous prime is 1222914859. The next prime is 1222914929. The reversal of 1222914893 is 3984192221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 615933124 + 606981769 = 24818^2 + 24637^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222914893 - 2¹⁶ = 1222849357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222914893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222914293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611457446 + 611457447.

It is an arithmetic number, because the mean of its divisors is an integer number (611457447).

Almost surely, 2^1222914893 is an apocalyptic number.

It is an amenable number.

1222914893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222914893 is an equidigital number, since it uses as much as digits as its factorization.

1222914893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 1222914893 is about 34970.2000709175. The cubic root of 1222914893 is about 1069.3800505183.

The spelling of 1222914893 in words is "one billion, two hundred twenty-two million, nine hundred fourteen thousand, eight hundred ninety-three".