2112012101 has 4 divisors (see below), whose sum is σ = 2112489792. Its totient is φ = 2111534412.

The previous prime is 2112012073. The next prime is 2112012103. The reversal of 2112012101 is 1012102112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2112012101 - 2¹⁸ = 2111749957 is a prime.

It is a super-2 number, since 2×2112012101² = 8921190229540868402, 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 (2112012103) 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, 232151 + ... + 241076.

It is an arithmetic number, because the mean of its divisors is an integer number (528122448).

Almost surely, 2^2112012101 is an apocalyptic number.

It is an amenable number.

2112012101 is a deficient number, since it is larger than the sum of its proper divisors (477691).

2112012101 is an equidigital number, since it uses as much as digits as its factorization.

2112012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477690.

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

The square root of 2112012101 is about 45956.6328292228. The cubic root of 2112012101 is about 1283.0161823960.

Adding to 2112012101 its reverse (1012102112), we get a palindrome (3124114213).

The spelling of 2112012101 in words is "two billion, one hundred twelve million, twelve thousand, one hundred one".