2011200021012 has 72 divisors (see below), whose sum is σ = 5878892391456. Its totient is φ = 530426377152.

The previous prime is 2011200021011. The next prime is 2011200021029. The reversal of 2011200021012 is 2101200021102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011200021011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131546518 + ... + 131561805.

Almost surely, 2^{2011200021012} is an apocalyptic number.

It is an amenable number.

2011200021012 is an abundant number, since it is smaller than the sum of its proper divisors (3867692370444).

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

2011200021012 is a wasteful number, since it uses less digits than its factorization.

2011200021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263108357 (or 263108348 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2011200021012 its reverse (2101200021102), we get a palindrome (4112400042114).

The spelling of 2011200021012 in words is "two trillion, eleven billion, two hundred million, twenty-one thousand, twelve".