12200122202138 has 24 divisors (see below), whose sum is σ = 20190064940028. Its totient is φ = 5524583630592.

The previous prime is 12200122202137. The next prime is 12200122202143. The reversal of 12200122202138 is 83120222100221.

It is a happy number.

12200122202138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 530294173369 + 11669828028769 = 728213^2 + 3416113^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (12200122202137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340501295 + ... + 340537122.

Almost surely, 2^{12200122202138} is an apocalyptic number.

12200122202138 is a deficient number, since it is larger than the sum of its proper divisors (7989942737890).

12200122202138 is a wasteful number, since it uses less digits than its factorization.

12200122202138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681038498 (or 681038485 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 12200122202138 its reverse (83120222100221), we get a palindrome (95320344302359).

The spelling of 12200122202138 in words is "twelve trillion, two hundred billion, one hundred twenty-two million, two hundred two thousand, one hundred thirty-eight".