1222200949 has 2 divisors, whose sum is σ = 1222200950. Its totient is φ = 1222200948.

The previous prime is 1222200943. The next prime is 1222200953. The reversal of 1222200949 is 9490022221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1098591025 + 123609924 = 33145^2 + 11118^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222200949 - 2⁹ = 1222200437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222200949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222200943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611100474 + 611100475.

It is an arithmetic number, because the mean of its divisors is an integer number (611100475).

Almost surely, 2^1222200949 is an apocalyptic number.

It is an amenable number.

1222200949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222200949 is an equidigital number, since it uses as much as digits as its factorization.

1222200949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1222200949 is about 34959.9906893580. The cubic root of 1222200949 is about 1069.1719068180.

The spelling of 1222200949 in words is "one billion, two hundred twenty-two million, two hundred thousand, nine hundred forty-nine".