1200111002200 has 48 divisors (see below), whose sum is σ = 3043917911160. Its totient is φ = 436404000000.

The previous prime is 1200111002171. The next prime is 1200111002219. The reversal of 1200111002200 is 22001110021.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 272750301 + ... + 272754700.

Almost surely, 2^{1200111002200} is an apocalyptic number.

1200111002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200111002200 is an abundant number, since it is smaller than the sum of its proper divisors (1843806908960).

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

1200111002200 is a wasteful number, since it uses less digits than its factorization.

1200111002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545505028 (or 545505019 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1200111002200 its reverse (22001110021), we get a palindrome (1222112112221).

It can be divided in two parts, 120011 and 1002200, that added together give a palindrome (1122211).

The spelling of 1200111002200 in words is "one trillion, two hundred billion, one hundred eleven million, two thousand, two hundred".