10221404231 has 2 divisors, whose sum is σ = 10221404232. Its totient is φ = 10221404230.

The previous prime is 10221404213. The next prime is 10221404233. The reversal of 10221404231 is 13240412201.

Together with previous prime (10221404213) 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 a de Polignac number, because none of the positive numbers 2^k-10221404231 is a prime.

It is a super-2 number, since 2×10221404231² (a number of 21 digits) contains 22 as substring.

Together with 10221404233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221404233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110702115 + 5110702116.

It is an arithmetic number, because the mean of its divisors is an integer number (5110702116).

Almost surely, 2^10221404231 is an apocalyptic number.

10221404231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221404231 is an equidigital number, since it uses as much as digits as its factorization.

10221404231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10221404231 its reverse (13240412201), we get a palindrome (23461816432).

The spelling of 10221404231 in words is "ten billion, two hundred twenty-one million, four hundred four thousand, two hundred thirty-one".