10401331124221 has 2 divisors, whose sum is σ = 10401331124222. Its totient is φ = 10401331124220.

The previous prime is 10401331124213. The next prime is 10401331124227. The reversal of 10401331124221 is 12242113310401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5303873484196 + 5097457640025 = 2303014^2 + 2257755^2 .

It is a cyclic number.

It is not a de Polignac number, because 10401331124221 - 2³ = 10401331124213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10401331124227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200665562110 + 5200665562111.

It is an arithmetic number, because the mean of its divisors is an integer number (5200665562111).

Almost surely, 2^{10401331124221} is an apocalyptic number.

It is an amenable number.

10401331124221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10401331124221 is an equidigital number, since it uses as much as digits as its factorization.

10401331124221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 10401331124221 its reverse (12242113310401), we get a palindrome (22643444434622).

The spelling of 10401331124221 in words is "ten trillion, four hundred one billion, three hundred thirty-one million, one hundred twenty-four thousand, two hundred twenty-one".