2012221100111 has 4 divisors (see below), whose sum is σ = 2012299122000. Its totient is φ = 2012143078224.

The previous prime is 2012221100101. The next prime is 2012221100117. The reversal of 2012221100111 is 1110011222102.

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 2012221100111 - 2⁶ = 2012221100047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012221100117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38972246 + ... + 39023843.

It is an arithmetic number, because the mean of its divisors is an integer number (503074780500).

Almost surely, 2^{2012221100111} is an apocalyptic number.

2012221100111 is a deficient number, since it is larger than the sum of its proper divisors (78021889).

2012221100111 is an equidigital number, since it uses as much as digits as its factorization.

2012221100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78021888.

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

Adding to 2012221100111 its reverse (1110011222102), we get a palindrome (3122232322213).

The spelling of 2012221100111 in words is "two trillion, twelve billion, two hundred twenty-one million, one hundred thousand, one hundred eleven".