2011012212011 has 4 divisors (see below), whose sum is σ = 2193831504024. Its totient is φ = 1828192920000.

The previous prime is 2011012211969. The next prime is 2011012212037. The reversal of 2011012212011 is 1102122101102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011012212011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011012212071) 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, 91409645990 + ... + 91409646011.

It is an arithmetic number, because the mean of its divisors is an integer number (548457876006).

Almost surely, 2^{2011012212011} is an apocalyptic number.

2011012212011 is a deficient number, since it is larger than the sum of its proper divisors (182819292013).

2011012212011 is a wasteful number, since it uses less digits than its factorization.

2011012212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182819292012.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2011012212011 its reverse (1102122101102), we get a palindrome (3113134313113).

The spelling of 2011012212011 in words is "two trillion, eleven billion, twelve million, two hundred twelve thousand, eleven".