2011012100212 has 24 divisors (see below), whose sum is σ = 3536116416000. Its totient is φ = 1000696795296.

The previous prime is 2011012100203. The next prime is 2011012100213. The reversal of 2011012100212 is 2120012101102.

It is a junction number, because it is equal to n+sod(n) for n = 2011012100192 and 2011012100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011012100213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1739913 + ... + 2655055.

It is an arithmetic number, because the mean of its divisors is an integer number (147338184000).

Almost surely, 2^{2011012100212} is an apocalyptic number.

It is an amenable number.

2011012100212 is a deficient number, since it is larger than the sum of its proper divisors (1525104315788).

2011012100212 is a wasteful number, since it uses less digits than its factorization.

2011012100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917775 (or 917773 counting only the distinct ones).

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

Adding to 2011012100212 its reverse (2120012101102), we get a palindrome (4131024201314).

The spelling of 2011012100212 in words is "two trillion, eleven billion, twelve million, one hundred thousand, two hundred twelve".