1222720466 has 8 divisors (see below), whose sum is σ = 2000815344. Its totient is φ = 555782020.

The previous prime is 1222720459. The next prime is 1222720481. The reversal of 1222720466 is 6640272221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27789080 + ... + 27789123.

It is an arithmetic number, because the mean of its divisors is an integer number (250101918).

Almost surely, 2^1222720466 is an apocalyptic number.

1222720466 is a deficient number, since it is larger than the sum of its proper divisors (778094878).

1222720466 is a wasteful number, since it uses less digits than its factorization.

1222720466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55578216.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 1222720466 is about 34967.4200649690. The cubic root of 1222720466 is about 1069.3233751722.

Adding to 1222720466 its reverse (6640272221), we get a palindrome (7862992687).

The spelling of 1222720466 in words is "one billion, two hundred twenty-two million, seven hundred twenty thousand, four hundred sixty-six".