12213402011222 has 16 divisors (see below), whose sum is σ = 18633195308400. Its totient is φ = 6002474142240.

The previous prime is 12213402011179. The next prime is 12213402011263. The reversal of 12213402011222 is 22211020431221.

It is a super-2 number, since 2×12213402011222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34129697 + ... + 34485692.

It is an arithmetic number, because the mean of its divisors is an integer number (1164574706775).

Almost surely, 2^{12213402011222} is an apocalyptic number.

12213402011222 is a deficient number, since it is larger than the sum of its proper divisors (6419793297178).

12213402011222 is a wasteful number, since it uses less digits than its factorization.

12213402011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68616911.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12213402011222 its reverse (22211020431221), we get a palindrome (34424422442443).

The spelling of 12213402011222 in words is "twelve trillion, two hundred thirteen billion, four hundred two million, eleven thousand, two hundred twenty-two".