1421422231 has 2 divisors, whose sum is σ = 1421422232. Its totient is φ = 1421422230.

The previous prime is 1421422193. The next prime is 1421422259. The reversal of 1421422231 is 1322241241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421422231 - 2¹¹ = 1421420183 is a prime.

It is a super-2 number, since 2×1421422231² = 4040882317562034722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421422291) by changing a digit.

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 as a sum of consecutive naturals, namely, 710711115 + 710711116.

It is an arithmetic number, because the mean of its divisors is an integer number (710711116).

Almost surely, 2^1421422231 is an apocalyptic number.

1421422231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421422231 is an equidigital number, since it uses as much as digits as its factorization.

1421422231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 22.

The square root of 1421422231 is about 37701.7536860025. The cubic root of 1421422231 is about 1124.3659916689.

Adding to 1421422231 its reverse (1322241241), we get a palindrome (2743663472).

The spelling of 1421422231 in words is "one billion, four hundred twenty-one million, four hundred twenty-two thousand, two hundred thirty-one".