2220111122 has 4 divisors (see below), whose sum is σ = 3330166686. Its totient is φ = 1110055560.

The previous prime is 2220111121. The next prime is 2220111137. The reversal of 2220111122 is 2211110222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2211110222 = 2 ⋅1105555111.

It can be written as a sum of positive squares in only one way, i.e., 1280136841 + 939974281 = 35779^2 + 30659^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2220111097 and 2220111106.

It is not an unprimeable number, because it can be changed into a prime (2220111121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555027779 + ... + 555027782.

Almost surely, 2^2220111122 is an apocalyptic number.

2220111122 is a deficient number, since it is larger than the sum of its proper divisors (1110055564).

2220111122 is a wasteful number, since it uses less digits than its factorization.

2220111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110055563.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2220111122 is about 47118.0551593548. The cubic root of 2220111122 is about 1304.5425155664.

Adding to 2220111122 its reverse (2211110222), we get a palindrome (4431221344).

The spelling of 2220111122 in words is "two billion, two hundred twenty million, one hundred eleven thousand, one hundred twenty-two".