2112021201111 has 8 divisors (see below), whose sum is σ = 2816042045184. Its totient is φ = 1408007245560.

The previous prime is 2112021201109. The next prime is 2112021201167. The reversal of 2112021201111 is 1111021202112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2112021201111 - 2¹ = 2112021201109 is a prime.

It is a super-2 number, since 2×2112021201111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112021201211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958335 + ... + 2267696.

It is an arithmetic number, because the mean of its divisors is an integer number (352005255648).

Almost surely, 2^{2112021201111} is an apocalyptic number.

2112021201111 is a deficient number, since it is larger than the sum of its proper divisors (704020844073).

2112021201111 is a wasteful number, since it uses less digits than its factorization.

2112021201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444261.

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

Adding to 2112021201111 its reverse (1111021202112), we get a palindrome (3223042403223).

It can be divided in two parts, 2112021 and 201111, that added together give a palindrome (2313132).

The spelling of 2112021201111 in words is "two trillion, one hundred twelve billion, twenty-one million, two hundred one thousand, one hundred eleven".