2011000111212 has 96 divisors (see below), whose sum is σ = 4931429368320. Its totient is φ = 636606051840.

The previous prime is 2011000111201. The next prime is 2011000111231. The reversal of 2011000111212 is 2121110001102.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30890248 + ... + 30955280.

It is an arithmetic number, because the mean of its divisors is an integer number (51369055920).

Almost surely, 2^{2011000111212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011000111212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2465714684160).

2011000111212 is an abundant number, since it is smaller than the sum of its proper divisors (2920429257108).

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

2011000111212 is a wasteful number, since it uses less digits than its factorization.

2011000111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65863 (or 65861 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2011000111212 its reverse (2121110001102), we get a palindrome (4132110112314).

It can be divided in two parts, 2011000 and 111212, that added together give a palindrome (2122212).

The spelling of 2011000111212 in words is "two trillion, eleven billion, one hundred eleven thousand, two hundred twelve".