1222213234 has 8 divisors (see below), whose sum is σ = 1999985328. Its totient is φ = 555551460.

The previous prime is 1222213219. The next prime is 1222213243. The reversal of 1222213234 is 4323122221.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 55555147 = 1222213234 / (1 + 2 + 2 + 2 + 2 + 1 + 3 + 2 + 3 + 4).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27777552 + ... + 27777595.

It is an arithmetic number, because the mean of its divisors is an integer number (249998166).

Almost surely, 2^1222213234 is an apocalyptic number.

1222213234 is a deficient number, since it is larger than the sum of its proper divisors (777772094).

1222213234 is a wasteful number, since it uses less digits than its factorization.

1222213234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55555160.

The product of its digits is 1152, while the sum is 22.

The square root of 1222213234 is about 34960.1663897642. The cubic root of 1222213234 is about 1069.1754890802.

Adding to 1222213234 its reverse (4323122221), we get a palindrome (5545335455).

The spelling of 1222213234 in words is "one billion, two hundred twenty-two million, two hundred thirteen thousand, two hundred thirty-four".