2011212212011 has 4 divisors (see below), whose sum is σ = 2016814474800. Its totient is φ = 2005609949224.

The previous prime is 2011212212003. The next prime is 2011212212033. The reversal of 2011212212011 is 1102122121102.

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

It is a cyclic number.

It is not a de Polignac number, because 2011212212011 - 2³ = 2011212212003 is a prime.

It is a super-2 number, since 2×2011212212011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011212212111) 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, 2801130856 + ... + 2801131573.

It is an arithmetic number, because the mean of its divisors is an integer number (504203618700).

Almost surely, 2^{2011212212011} is an apocalyptic number.

2011212212011 is a deficient number, since it is larger than the sum of its proper divisors (5602262789).

2011212212011 is an equidigital number, since it uses as much as digits as its factorization.

2011212212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5602262788.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2011212212011 its reverse (1102122121102), we get a palindrome (3113334333113).

Subtracting from 2011212212011 its reverse (1102122121102), we obtain a palindrome (909090090909).

The spelling of 2011212212011 in words is "two trillion, eleven billion, two hundred twelve million, two hundred twelve thousand, eleven".