10400340103221 has 16 divisors (see below), whose sum is σ = 13970638083584. Its totient is φ = 6881985621504.

The previous prime is 10400340103217. The next prime is 10400340103259. The reversal of 10400340103221 is 12230104300401.

It is not a de Polignac number, because 10400340103221 - 2² = 10400340103217 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 (10400340103721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22839976 + ... + 23290881.

It is an arithmetic number, because the mean of its divisors is an integer number (873164880224).

Almost surely, 2^{10400340103221} is an apocalyptic number.

It is an amenable number.

10400340103221 is a deficient number, since it is larger than the sum of its proper divisors (3570297980363).

10400340103221 is a wasteful number, since it uses less digits than its factorization.

10400340103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46131420.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 10400340103221 its reverse (12230104300401), we get a palindrome (22630444403622).

The spelling of 10400340103221 in words is "ten trillion, four hundred billion, three hundred forty million, one hundred three thousand, two hundred twenty-one".