1220351422 has 8 divisors (see below), whose sum is σ = 1842813000. Its totient is φ = 606080424.

The previous prime is 1220351389. The next prime is 1220351507. The reversal of 1220351422 is 2241530221.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1220351393 and 1220351402.

It is a congruent number.

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, 2047272 + ... + 2047867.

It is an arithmetic number, because the mean of its divisors is an integer number (230351625).

Almost surely, 2^1220351422 is an apocalyptic number.

1220351422 is a deficient number, since it is larger than the sum of its proper divisors (622461578).

1220351422 is a wasteful number, since it uses less digits than its factorization.

1220351422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095290.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1220351422 is about 34933.5286222277. The cubic root of 1220351422 is about 1068.6323172543.

Adding to 1220351422 its reverse (2241530221), we get a palindrome (3461881643).

The spelling of 1220351422 in words is "one billion, two hundred twenty million, three hundred fifty-one thousand, four hundred twenty-two".