2012212101111 has 16 divisors (see below), whose sum is σ = 2799684124416. Its totient is φ = 1283110934336.

The previous prime is 2012212101071. The next prime is 2012212101169. The reversal of 2012212101111 is 1111012122102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2012212101111 - 2²¹ = 2012210003959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012212101811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1949971 + ... + 2797643.

It is an arithmetic number, because the mean of its divisors is an integer number (174980257776).

Almost surely, 2^{2012212101111} is an apocalyptic number.

2012212101111 is a deficient number, since it is larger than the sum of its proper divisors (787472023305).

2012212101111 is a wasteful number, since it uses less digits than its factorization.

2012212101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882102.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2012212101111 its reverse (1111012122102), we get a palindrome (3123224223213).

The spelling of 2012212101111 in words is "two trillion, twelve billion, two hundred twelve million, one hundred one thousand, one hundred eleven".