1421255222 has 12 divisors (see below), whose sum is σ = 2148850260. Its totient is φ = 705016116.

The previous prime is 1421255159. The next prime is 1421255237. The reversal of 1421255222 is 2225521241.

It is a junction number, because it is equal to n+sod(n) for n = 1421255191 and 1421255200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10229 + ... + 54287.

It is an arithmetic number, because the mean of its divisors is an integer number (179070855).

Almost surely, 2^1421255222 is an apocalyptic number.

1421255222 is a deficient number, since it is larger than the sum of its proper divisors (727595038).

1421255222 is an equidigital number, since it uses as much as digits as its factorization.

1421255222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44315 (or 44188 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 1421255222 is about 37699.5387504940. The cubic root of 1421255222 is about 1124.3219544150.

Adding to 1421255222 its reverse (2225521241), we get a palindrome (3646776463).

The spelling of 1421255222 in words is "one billion, four hundred twenty-one million, two hundred fifty-five thousand, two hundred twenty-two".