1201122200 has 48 divisors (see below), whose sum is σ = 2817375480. Its totient is φ = 476188160.

The previous prime is 1201122089. The next prime is 1201122211. The reversal of 1201122200 is 22211021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3974 + ... + 49173.

Almost surely, 2^1201122200 is an apocalyptic number.

1201122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201122200 is an abundant number, since it is smaller than the sum of its proper divisors (1616253280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201122200 is a wasteful number, since it uses less digits than its factorization.

1201122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53276 (or 53267 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1201122200 is about 34657.2099280943. The cubic root of 1201122200 is about 1062.9897202676.

Adding to 1201122200 its reverse (22211021), we get a palindrome (1223333221).

The spelling of 1201122200 in words is "one billion, two hundred one million, one hundred twenty-two thousand, two hundred".