2012111021200 has 60 divisors (see below), whose sum is σ = 5524681983040. Its totient is φ = 689866634880.

The previous prime is 2012111021191. The next prime is 2012111021293. The reversal of 2012111021200 is 21201112102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 359302740 + ... + 359308339.

Almost surely, 2^{2012111021200} is an apocalyptic number.

2012111021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012111021200 is an abundant number, since it is smaller than the sum of its proper divisors (3512570961840).

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

2012111021200 is a wasteful number, since it uses less digits than its factorization.

2012111021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718611104 (or 718611093 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2012111021200 its reverse (21201112102), we get a palindrome (2033312133302).

The spelling of 2012111021200 in words is "two trillion, twelve billion, one hundred eleven million, twenty-one thousand, two hundred".