12221100122 has 16 divisors (see below), whose sum is σ = 22855044672. Its totient is φ = 4761467520.

The previous prime is 12221100121. The next prime is 12221100137. The reversal of 12221100122 is 22100112221.

12221100122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12221100097 and 12221100106.

It is not an unprimeable number, because it can be changed into a prime (12221100121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39678743 + ... + 39679050.

It is an arithmetic number, because the mean of its divisors is an integer number (1428440292).

Almost surely, 2^12221100122 is an apocalyptic number.

12221100122 is a deficient number, since it is larger than the sum of its proper divisors (10633944550).

12221100122 is a wasteful number, since it uses less digits than its factorization.

12221100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79357813.

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

Adding to 12221100122 its reverse (22100112221), we get a palindrome (34321212343).

The spelling of 12221100122 in words is "twelve billion, two hundred twenty-one million, one hundred thousand, one hundred twenty-two".