12400221101 has 8 divisors (see below), whose sum is σ = 12641251200. Its totient is φ = 12160219680.

The previous prime is 12400221083. The next prime is 12400221121. The reversal of 12400221101 is 10112200421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12400221101 - 2³⁰ = 11326479277 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 (12400221121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232805 + ... + 281066.

It is an arithmetic number, because the mean of its divisors is an integer number (1580156400).

Almost surely, 2^12400221101 is an apocalyptic number.

It is an amenable number.

12400221101 is a deficient number, since it is larger than the sum of its proper divisors (241030099).

12400221101 is an equidigital number, since it uses as much as digits as its factorization.

12400221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514339.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12400221101 its reverse (10112200421), we get a palindrome (22512421522).

The spelling of 12400221101 in words is "twelve billion, four hundred million, two hundred twenty-one thousand, one hundred one".