1011122222 has 12 divisors (see below), whose sum is σ = 1667098608. Its totient is φ = 459600900.

The previous prime is 1011122219. The next prime is 1011122269. The reversal of 1011122222 is 2222211101.

It is a junction number, because it is equal to n+sod(n) for n = 1011122197 and 1011122206.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 2088854 + ... + 2089337.

It is an arithmetic number, because the mean of its divisors is an integer number (138924884).

Almost surely, 2^1011122222 is an apocalyptic number.

1011122222 is a deficient number, since it is larger than the sum of its proper divisors (655976386).

1011122222 is a wasteful number, since it uses less digits than its factorization.

1011122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178215 (or 4178204 counting only the distinct ones).

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

The square root of 1011122222 is about 31798.1480907301. The cubic root of 1011122222 is about 1003.6937467693.

Adding to 1011122222 its reverse (2222211101), we get a palindrome (3233333323).

The spelling of 1011122222 in words is "one billion, eleven million, one hundred twenty-two thousand, two hundred twenty-two".