12213020122 has 16 divisors (see below), whose sum is σ = 18536185800. Its totient is φ = 6034708288.

The previous prime is 12213020117. The next prime is 12213020137. The reversal of 12213020122 is 22102031221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7489344681 + 4723675441 = 86541^2 + 68729^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12213020096 and 12213020105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45313 + ... + 162724.

Almost surely, 2^12213020122 is an apocalyptic number.

12213020122 is a deficient number, since it is larger than the sum of its proper divisors (6323165678).

12213020122 is a wasteful number, since it uses less digits than its factorization.

12213020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208385.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12213020122 its reverse (22102031221), we get a palindrome (34315051343).

The spelling of 12213020122 in words is "twelve billion, two hundred thirteen million, twenty thousand, one hundred twenty-two".