12220022220122 has 16 divisors (see below), whose sum is σ = 18811815528744. Its totient is φ = 5949967968000.

The previous prime is 12220022220071. The next prime is 12220022220127. The reversal of 12220022220122 is 22102222002221.

It can be written as a sum of positive squares in 4 ways, for example, as 7944849832921 + 4275172387201 = 2818661^2 + 2067649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12220022220094 and 12220022220103.

It is not an unprimeable number, because it can be changed into a prime (12220022220127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137686379 + ... + 137775102.

Almost surely, 2^{12220022220122} is an apocalyptic number.

12220022220122 is a deficient number, since it is larger than the sum of its proper divisors (6591793308622).

12220022220122 is a wasteful number, since it uses less digits than its factorization.

12220022220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275462065.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12220022220122 its reverse (22102222002221), we get a palindrome (34322244222343).

The spelling of 12220022220122 in words is "twelve trillion, two hundred twenty billion, twenty-two million, two hundred twenty thousand, one hundred twenty-two".