2112111101012 has 24 divisors (see below), whose sum is σ = 4032680437632. Its totient is φ = 959938992000.

The previous prime is 2112111101011. The next prime is 2112111101027. The reversal of 2112111101012 is 2101011112112.

It is a super-2 number, since 2×2112111101012² (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 (2112111101011) 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, 2403989 + ... + 3162812.

It is an arithmetic number, because the mean of its divisors is an integer number (168028351568).

Almost surely, 2^{2112111101012} is an apocalyptic number.

2112111101012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2112111101012 is a deficient number, since it is larger than the sum of its proper divisors (1920569336620).

2112111101012 is a wasteful number, since it uses less digits than its factorization.

2112111101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5575439 (or 5575437 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2112111101012 its reverse (2101011112112), we get a palindrome (4213122213124).

The spelling of 2112111101012 in words is "two trillion, one hundred twelve billion, one hundred eleven million, one hundred one thousand, twelve".