12222011401 has 4 divisors (see below), whose sum is σ = 12643460100. Its totient is φ = 11800562704.

The previous prime is 12222011387. The next prime is 12222011411. The reversal of 12222011401 is 10411022221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10411022221 = 3659 ⋅2845319.

It can be written as a sum of positive squares in 2 ways, for example, as 7881178176 + 4340833225 = 88776^2 + 65885^2 .

It is a cyclic number.

It is not a de Polignac number, because 12222011401 - 2¹⁵ = 12221978633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222011411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210724306 + ... + 210724363.

It is an arithmetic number, because the mean of its divisors is an integer number (3160865025).

Almost surely, 2^12222011401 is an apocalyptic number.

It is an amenable number.

12222011401 is a deficient number, since it is larger than the sum of its proper divisors (421448699).

12222011401 is an equidigital number, since it uses as much as digits as its factorization.

12222011401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421448698.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12222011401 its reverse (10411022221), we get a palindrome (22633033622).

The spelling of 12222011401 in words is "twelve billion, two hundred twenty-two million, eleven thousand, four hundred one".