1222961293 has 2 divisors, whose sum is σ = 1222961294. Its totient is φ = 1222961292.

The previous prime is 1222961261. The next prime is 1222961321. The reversal of 1222961293 is 3921692221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 727542729 + 495418564 = 26973^2 + 22258^2 .

It is an emirp because it is prime and its reverse (3921692221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222961293 - 2⁵ = 1222961261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222961203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611480646 + 611480647.

It is an arithmetic number, because the mean of its divisors is an integer number (611480647).

Almost surely, 2^1222961293 is an apocalyptic number.

It is an amenable number.

1222961293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222961293 is an equidigital number, since it uses as much as digits as its factorization.

1222961293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 1222961293 is about 34970.8634866227. The cubic root of 1222961293 is about 1069.3935752008.

The spelling of 1222961293 in words is "one billion, two hundred twenty-two million, nine hundred sixty-one thousand, two hundred ninety-three".