10321402221 has 24 divisors (see below), whose sum is σ = 16205585760. Its totient is φ = 6292263456.

The previous prime is 10321402213. The next prime is 10321402249. The reversal of 10321402221 is 12220412301.

It is a happy number.

10321402221 is a `hidden beast` number, since 10 + 32 + 1 + 402 + 221 = 666.

10321402221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10321402221 - 2³ = 10321402213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10321402194 and 10321402203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321402261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 399711 + ... + 424748.

It is an arithmetic number, because the mean of its divisors is an integer number (675232740).

Almost surely, 2^10321402221 is an apocalyptic number.

It is an amenable number.

10321402221 is a deficient number, since it is larger than the sum of its proper divisors (5884183539).

10321402221 is a wasteful number, since it uses less digits than its factorization.

10321402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824585 (or 824582 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10321402221 its reverse (12220412301), we get a palindrome (22541814522).

The spelling of 10321402221 in words is "ten billion, three hundred twenty-one million, four hundred two thousand, two hundred twenty-one".