2112145101 has 24 divisors (see below), whose sum is σ = 3345503616. Its totient is φ = 1273443840.

The previous prime is 2112145099. The next prime is 2112145117. The reversal of 2112145101 is 1015412112.

2112145101 is a `hidden beast` number, since 211 + 2 + 1 + 451 + 0 + 1 = 666.

It is not a de Polignac number, because 2112145101 - 2¹ = 2112145099 is a prime.

It is a super-2 number, since 2×2112145101² = 8922313855356600402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112145201) 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 23 ways as a sum of consecutive naturals, for example, 36165 + ... + 74378.

It is an arithmetic number, because the mean of its divisors is an integer number (139395984).

Almost surely, 2^2112145101 is an apocalyptic number.

It is an amenable number.

2112145101 is a deficient number, since it is larger than the sum of its proper divisors (1233358515).

2112145101 is a wasteful number, since it uses less digits than its factorization.

2112145101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110753 (or 110750 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 2112145101 is about 45958.0798228124. The cubic root of 2112145101 is about 1283.0431136764.

Adding to 2112145101 its reverse (1015412112), we get a palindrome (3127557213).

The spelling of 2112145101 in words is "two billion, one hundred twelve million, one hundred forty-five thousand, one hundred one".