12213222101 has 8 divisors (see below), whose sum is σ = 12239803800. Its totient is φ = 12186662400.

The previous prime is 12213222079. The next prime is 12213222121. The reversal of 12213222101 is 10122231221.

It can be written as a sum of positive squares in 4 ways, for example, as 4079887876 + 8133334225 = 63874^2 + 90185^2 .

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 12213222101 - 2³⁰ = 11139480277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12213222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213222121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1564115 + ... + 1571903.

It is an arithmetic number, because the mean of its divisors is an integer number (1529975475).

Almost surely, 2^12213222101 is an apocalyptic number.

It is an amenable number.

12213222101 is a deficient number, since it is larger than the sum of its proper divisors (26581699).

12213222101 is an equidigital number, since it uses as much as digits as its factorization.

12213222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10999.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12213222101 its reverse (10122231221), we get a palindrome (22335453322).

The spelling of 12213222101 in words is "twelve billion, two hundred thirteen million, two hundred twenty-two thousand, one hundred one".