1222827723 has 18 divisors (see below), whose sum is σ = 1912630356. Its totient is φ = 752508432.

The previous prime is 1222827721. The next prime is 1222827743. The reversal of 1222827723 is 3277282221.

It is a happy number.

It is not a de Polignac number, because 1222827723 - 2¹ = 1222827721 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1222827721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 400461 + ... + 403502.

It is an arithmetic number, because the mean of its divisors is an integer number (106257242).

Almost surely, 2^1222827723 is an apocalyptic number.

1222827723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1222827723 is a deficient number, since it is larger than the sum of its proper divisors (689802633).

1222827723 is a wasteful number, since it uses less digits than its factorization.

1222827723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803995 (or 803979 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 1222827723 is about 34968.9537018196. The cubic root of 1222827723 is about 1069.3546412620.

The spelling of 1222827723 in words is "one billion, two hundred twenty-two million, eight hundred twenty-seven thousand, seven hundred twenty-three".