12220211121122 has 8 divisors (see below), whose sum is σ = 18332788096236. Its totient is φ = 6109281755712.

The previous prime is 12220211121119. The next prime is 12220211121127. The reversal of 12220211121122 is 22112111202221.

It can be written as a sum of positive squares in 2 ways, for example, as 12214892190361 + 5318930761 = 3494981^2 + 72931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12220211121094 and 12220211121103.

It is not an unprimeable number, because it can be changed into a prime (12220211121127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411883883 + ... + 411913550.

Almost surely, 2^{12220211121122} is an apocalyptic number.

12220211121122 is a deficient number, since it is larger than the sum of its proper divisors (6112576975114).

12220211121122 is an equidigital number, since it uses as much as digits as its factorization.

12220211121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823804852.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12220211121122 its reverse (22112111202221), we get a palindrome (34332322323343).

The spelling of 12220211121122 in words is "twelve trillion, two hundred twenty billion, two hundred eleven million, one hundred twenty-one thousand, one hundred twenty-two".