1200122222 has 32 divisors (see below), whose sum is σ = 1955923200. Its totient is φ = 548997120.

The previous prime is 1200122171. The next prime is 1200122237. The reversal of 1200122222 is 2222210021.

It is a junction number, because it is equal to n+sod(n) for n = 1200122197 and 1200122206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2603072 + ... + 2603532.

It is an arithmetic number, because the mean of its divisors is an integer number (61122600).

Almost surely, 2^1200122222 is an apocalyptic number.

1200122222 is a deficient number, since it is larger than the sum of its proper divisors (755800978).

1200122222 is a wasteful number, since it uses less digits than its factorization.

1200122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1200122222 is about 34642.7802290751. The cubic root of 1200122222 is about 1062.6946458066.

Adding to 1200122222 its reverse (2222210021), we get a palindrome (3422332243).

The spelling of 1200122222 in words is "one billion, two hundred million, one hundred twenty-two thousand, two hundred twenty-two".