1222400234 has 16 divisors (see below), whose sum is σ = 2001960576. Its totient is φ = 555172800.

The previous prime is 1222400209. The next prime is 1222400239. The reversal of 1222400234 is 4320042221.

It is not an unprimeable number, because it can be changed into a prime (1222400239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4514 + ... + 49650.

It is an arithmetic number, because the mean of its divisors is an integer number (125122536).

Almost surely, 2^1222400234 is an apocalyptic number.

1222400234 is a deficient number, since it is larger than the sum of its proper divisors (779560342).

1222400234 is a wasteful number, since it uses less digits than its factorization.

1222400234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46381.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1222400234 is about 34962.8407598696. The cubic root of 1222400234 is about 1069.2300146505.

Adding to 1222400234 its reverse (4320042221), we get a palindrome (5542442455).

The spelling of 1222400234 in words is "one billion, two hundred twenty-two million, four hundred thousand, two hundred thirty-four".