2011122012 has 12 divisors (see below), whose sum is σ = 4692618056. Its totient is φ = 670374000.

The previous prime is 2011122011. The next prime is 2011122019. The reversal of 2011122012 is 2102211102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2011122012² = 8089223494301856288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 167593501 = 2011122012 / (2 + 0 + 1 + 1 + 1 + 2 + 2 + 0 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011122011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83796739 + ... + 83796762.

Almost surely, 2^2011122012 is an apocalyptic number.

It is an amenable number.

2011122012 is an abundant number, since it is smaller than the sum of its proper divisors (2681496044).

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

2011122012 is a wasteful number, since it uses less digits than its factorization.

2011122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167593508 (or 167593506 counting only the distinct ones).

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

The square root of 2011122012 is about 44845.5350285845. The cubic root of 2011122012 is about 1262.2522101940.

Adding to 2011122012 its reverse (2102211102), we get a palindrome (4113333114).

The spelling of 2011122012 in words is "two billion, eleven million, one hundred twenty-two thousand, twelve".