2012221002311 has 4 divisors (see below), whose sum is σ = 2167007233272. Its totient is φ = 1857434771352.

The previous prime is 2012221002307. The next prime is 2012221002343. The reversal of 2012221002311 is 1132001222102.

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 2012221002311 - 2² = 2012221002307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012221002311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012220002311) 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, 77393115461 + ... + 77393115486.

It is an arithmetic number, because the mean of its divisors is an integer number (541751808318).

Almost surely, 2^{2012221002311} is an apocalyptic number.

2012221002311 is a deficient number, since it is larger than the sum of its proper divisors (154786230961).

2012221002311 is a wasteful number, since it uses less digits than its factorization.

2012221002311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154786230960.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2012221002311 its reverse (1132001222102), we get a palindrome (3144222224413).

The spelling of 2012221002311 in words is "two trillion, twelve billion, two hundred twenty-one million, two thousand, three hundred eleven".