10331421423221 has 16 divisors (see below), whose sum is σ = 10694880491328. Its totient is φ = 9972442022400.

The previous prime is 10331421423217. The next prime is 10331421423251. The reversal of 10331421423221 is 12232412413301.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10331421423221 - 2² = 10331421423217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10331421423251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15785861 + ... + 16427301.

It is an arithmetic number, because the mean of its divisors is an integer number (668430030708).

Almost surely, 2^{10331421423221} is an apocalyptic number.

It is an amenable number.

10331421423221 is a deficient number, since it is larger than the sum of its proper divisors (363459068107).

10331421423221 is a wasteful number, since it uses less digits than its factorization.

10331421423221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644932.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 10331421423221 its reverse (12232412413301), we get a palindrome (22563833836522).

The spelling of 10331421423221 in words is "ten trillion, three hundred thirty-one billion, four hundred twenty-one million, four hundred twenty-three thousand, two hundred twenty-one".