1222632317 has 4 divisors (see below), whose sum is σ = 1227879900. Its totient is φ = 1217384736.

The previous prime is 1222632277. The next prime is 1222632377. The reversal of 1222632317 is 7132362221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7132362221 = 179 ⋅39845599.

It can be written as a sum of positive squares in 2 ways, for example, as 859310596 + 363321721 = 29314^2 + 19061^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222632317 - 2⁶ = 1222632253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222632317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222632377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2623442 + ... + 2623907.

It is an arithmetic number, because the mean of its divisors is an integer number (306969975).

Almost surely, 2^1222632317 is an apocalyptic number.

It is an amenable number.

1222632317 is a deficient number, since it is larger than the sum of its proper divisors (5247583).

1222632317 is an equidigital number, since it uses as much as digits as its factorization.

1222632317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247582.

The product of its digits is 6048, while the sum is 29.

The square root of 1222632317 is about 34966.1595975309. The cubic root of 1222632317 is about 1069.2976778156.

Adding to 1222632317 its reverse (7132362221), we get a palindrome (8354994538).

The spelling of 1222632317 in words is "one billion, two hundred twenty-two million, six hundred thirty-two thousand, three hundred seventeen".