1222233945 has 8 divisors (see below), whose sum is σ = 1955574336. Its totient is φ = 651858096.

The previous prime is 1222233941. The next prime is 1222233953. The reversal of 1222233945 is 5493322221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1222233945 - 2² = 1222233941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222233941) 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 7 ways as a sum of consecutive naturals, for example, 40741117 + ... + 40741146.

It is an arithmetic number, because the mean of its divisors is an integer number (244446792).

Almost surely, 2^1222233945 is an apocalyptic number.

1222233945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222233945 is a deficient number, since it is larger than the sum of its proper divisors (733340391).

1222233945 is an equidigital number, since it uses as much as digits as its factorization.

1222233945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81482271.

The product of its digits is 25920, while the sum is 33.

The square root of 1222233945 is about 34960.4625970538. The cubic root of 1222233945 is about 1069.1815282797.

The spelling of 1222233945 in words is "one billion, two hundred twenty-two million, two hundred thirty-three thousand, nine hundred forty-five".