1431220222 has 8 divisors (see below), whose sum is σ = 2147041296. Its totient is φ = 715539792.

The previous prime is 1431220207. The next prime is 1431220229. The reversal of 1431220222 is 2220221341.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1431220222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431220229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4303 + ... + 53674.

It is an arithmetic number, because the mean of its divisors is an integer number (268380162).

Almost surely, 2^1431220222 is an apocalyptic number.

1431220222 is a deficient number, since it is larger than the sum of its proper divisors (715821074).

1431220222 is a wasteful number, since it uses less digits than its factorization.

1431220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70322.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1431220222 is about 37831.4713168811. The cubic root of 1431220222 is about 1126.9435302028.

Adding to 1431220222 its reverse (2220221341), we get a palindrome (3651441563).

The spelling of 1431220222 in words is "one billion, four hundred thirty-one million, two hundred twenty thousand, two hundred twenty-two".