2011000121200 has 90 divisors (see below), whose sum is σ = 5620232383296. Its totient is φ = 689485749120.

The previous prime is 2011000121191. The next prime is 2011000121201. The reversal of 2011000121200 is 21210001102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011000121201) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51281424 + ... + 51320623.

Almost surely, 2^{2011000121200} is an apocalyptic number.

2011000121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011000121200 is an abundant number, since it is smaller than the sum of its proper divisors (3609232262096).

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

2011000121200 is a wasteful number, since it uses less digits than its factorization.

2011000121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102602079 (or 102602061 counting only the distinct ones).

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

Adding to 2011000121200 its reverse (21210001102), we get a palindrome (2032210122302).

The spelling of 2011000121200 in words is "two trillion, eleven billion, one hundred twenty-one thousand, two hundred".