1200311122 has 4 divisors (see below), whose sum is σ = 1800466686. Its totient is φ = 600155560.

The previous prime is 1200311107. The next prime is 1200311141. The reversal of 1200311122 is 2211130021.

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., 845704561 + 354606561 = 29081^2 + 18831^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300077779 + ... + 300077782.

Almost surely, 2^1200311122 is an apocalyptic number.

1200311122 is a deficient number, since it is larger than the sum of its proper divisors (600155564).

1200311122 is an equidigital number, since it uses as much as digits as its factorization.

1200311122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600155563.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1200311122 is about 34645.5065196051. The cubic root of 1200311122 is about 1062.7503991522.

Adding to 1200311122 its reverse (2211130021), we get a palindrome (3411441143).

The spelling of 1200311122 in words is "one billion, two hundred million, three hundred eleven thousand, one hundred twenty-two".