12212220001122 has 40 divisors (see below), whose sum is σ = 27364619587932. Its totient is φ = 4070710144800.

The previous prime is 12212220001027. The next prime is 12212220001159. The reversal of 12212220001122 is 22110002221221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11890434959001 + 321785042121 = 3448251^2 + 567261^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12212220001095 and 12212220001104.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39415972 + ... + 39724592.

Almost surely, 2^{12212220001122} is an apocalyptic number.

12212220001122 is an abundant number, since it is smaller than the sum of its proper divisors (15152399586810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212220001122 is a wasteful number, since it uses less digits than its factorization.

12212220001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552896 (or 552887 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12212220001122 its reverse (22110002221221), we get a palindrome (34322222222343).

The spelling of 12212220001122 in words is "twelve trillion, two hundred twelve billion, two hundred twenty million, one thousand, one hundred twenty-two".