1422521231 has 2 divisors, whose sum is σ = 1422521232. Its totient is φ = 1422521230.

The previous prime is 1422521213. The next prime is 1422521239. The reversal of 1422521231 is 1321252241.

Together with previous prime (1422521213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1422521231 - 2⁶ = 1422521167 is a prime.

It is a super-2 number, since 2×1422521231² = 4047133305291510722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1422521197 and 1422521206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422521239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711260615 + 711260616.

It is an arithmetic number, because the mean of its divisors is an integer number (711260616).

Almost surely, 2^1422521231 is an apocalyptic number.

1422521231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422521231 is an equidigital number, since it uses as much as digits as its factorization.

1422521231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 1422521231 is about 37716.3257887085. The cubic root of 1422521231 is about 1124.6556920998.

Adding to 1422521231 its reverse (1321252241), we get a palindrome (2743773472).

The spelling of 1422521231 in words is "one billion, four hundred twenty-two million, five hundred twenty-one thousand, two hundred thirty-one".