1222310243 has 12 divisors (see below), whose sum is σ = 1551132792. Its totient is φ = 952449120.

The previous prime is 1222310239. The next prime is 1222310267. The reversal of 1222310243 is 3420132221.

It is not a de Polignac number, because 1222310243 - 2² = 1222310239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222310203) 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 11 ways as a sum of consecutive naturals, for example, 1133330 + ... + 1134407.

It is an arithmetic number, because the mean of its divisors is an integer number (129261066).

Almost surely, 2^1222310243 is an apocalyptic number.

1222310243 is a deficient number, since it is larger than the sum of its proper divisors (328822549).

1222310243 is a wasteful number, since it uses less digits than its factorization.

1222310243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267762 (or 2267755 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1222310243 is about 34961.5537841212. The cubic root of 1222310243 is about 1069.2037757158.

Adding to 1222310243 its reverse (3420132221), we get a palindrome (4642442464).

The spelling of 1222310243 in words is "one billion, two hundred twenty-two million, three hundred ten thousand, two hundred forty-three".