2112110101 has 4 divisors (see below), whose sum is σ = 2112299532. Its totient is φ = 2111920672.

The previous prime is 2112110083. The next prime is 2112110123. The reversal of 2112110101 is 1010112112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2056622500 + 55487601 = 45350^2 + 7449^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112110101 - 2⁷ = 2112109973 is a prime.

It is a super-2 number, since 2×2112110101² = 8922018157492460402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112110191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76870 + ... + 100663.

It is an arithmetic number, because the mean of its divisors is an integer number (528074883).

Almost surely, 2^2112110101 is an apocalyptic number.

It is an amenable number.

2112110101 is a deficient number, since it is larger than the sum of its proper divisors (189431).

2112110101 is a wasteful number, since it uses less digits than its factorization.

2112110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189430.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 2112110101 is about 45957.6990394428. The cubic root of 2112110101 is about 1283.0360266070.

Adding to 2112110101 its reverse (1010112112), we get a palindrome (3122222213).

The spelling of 2112110101 in words is "two billion, one hundred twelve million, one hundred ten thousand, one hundred one".