1121001111200 has 72 divisors (see below), whose sum is σ = 2736792646560. Its totient is φ = 448376083200.

The previous prime is 1121001111179. The next prime is 1121001111233. The reversal of 1121001111200 is 21111001211.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24904715 + ... + 24949685.

It is an arithmetic number, because the mean of its divisors is an integer number (38011008980).

Almost surely, 2^{1121001111200} is an apocalyptic number.

1121001111200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121001111200 is an abundant number, since it is smaller than the sum of its proper divisors (1615791535360).

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

1121001111200 is a wasteful number, since it uses less digits than its factorization.

1121001111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76150 (or 76137 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1121001111200 its reverse (21111001211), we get a palindrome (1142112112411).

The spelling of 1121001111200 in words is "one trillion, one hundred twenty-one billion, one million, one hundred eleven thousand, two hundred".