2111122021112 has 16 divisors (see below), whose sum is σ = 4262842542840. Its totient is φ = 974364009696.

The previous prime is 2111122021111. The next prime is 2111122021121. The reversal of 2111122021112 is 2111202211112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111122021111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10149624998 + ... + 10149625205.

Almost surely, 2^{2111122021112} is an apocalyptic number.

It is an amenable number.

2111122021112 is an abundant number, since it is smaller than the sum of its proper divisors (2151720521728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111122021112 is a wasteful number, since it uses less digits than its factorization.

2111122021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20299250222 (or 20299250218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2111122021112 its reverse (2111202211112), we get a palindrome (4222324232224).

The spelling of 2111122021112 in words is "two trillion, one hundred eleven billion, one hundred twenty-two million, twenty-one thousand, one hundred twelve".