222012222122 has 4 divisors (see below), whose sum is σ = 333018333186. Its totient is φ = 111006111060.

The previous prime is 222012222079. The next prime is 222012222149. The reversal of 222012222122 is 221222210222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 145481979241 + 76530242881 = 381421^2 + 276641^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222012222094 and 222012222103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55503055529 + ... + 55503055532.

Almost surely, 2^222012222122 is an apocalyptic number.

222012222122 is a deficient number, since it is larger than the sum of its proper divisors (111006111064).

222012222122 is a wasteful number, since it uses less digits than its factorization.

222012222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111006111063.

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

Adding to 222012222122 its reverse (221222210222), we get a palindrome (443234432344).

The spelling of 222012222122 in words is "two hundred twenty-two billion, twelve million, two hundred twenty-two thousand, one hundred twenty-two".