2101112012 has 12 divisors (see below), whose sum is σ = 3739267560. Its totient is φ = 1032749856.

The previous prime is 2101111993. The next prime is 2101112023. The reversal of 2101112012 is 2102111012.

It is a junction number, because it is equal to n+sod(n) for n = 2101111984 and 2101112002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4451273 + ... + 4451744.

It is an arithmetic number, because the mean of its divisors is an integer number (311605630).

Almost surely, 2^2101112012 is an apocalyptic number.

It is an amenable number.

2101112012 is a deficient number, since it is larger than the sum of its proper divisors (1638155548).

2101112012 is a wasteful number, since it uses less digits than its factorization.

2101112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8903080 (or 8903078 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2101112012 is about 45837.8883894099. Note that the first 3 decimals coincide. The cubic root of 2101112012 is about 1280.8051599270.

Adding to 2101112012 its reverse (2102111012), we get a palindrome (4203223024).

The spelling of 2101112012 in words is "two billion, one hundred one million, one hundred twelve thousand, twelve".