10221311320631 has 2 divisors, whose sum is σ = 10221311320632. Its totient is φ = 10221311320630.

The previous prime is 10221311320607. The next prime is 10221311320643. The reversal of 10221311320631 is 13602311312201.

10221311320631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10221311320631 - 2¹⁰ = 10221311319607 is a prime.

It is a super-2 number, since 2×10221311320631² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10221311320631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221311322631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110655660315 + 5110655660316.

It is an arithmetic number, because the mean of its divisors is an integer number (5110655660316).

Almost surely, 2^{10221311320631} is an apocalyptic number.

10221311320631 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221311320631 is an equidigital number, since it uses as much as digits as its factorization.

10221311320631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 10221311320631 its reverse (13602311312201), we get a palindrome (23823622632832).

The spelling of 10221311320631 in words is "ten trillion, two hundred twenty-one billion, three hundred eleven million, three hundred twenty thousand, six hundred thirty-one".