2112300021 has 8 divisors (see below), whose sum is σ = 3033046240. Its totient is φ = 1299876912.

The previous prime is 2112300007. The next prime is 2112300023. The reversal of 2112300021 is 1200032112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2112300021 - 2⁶ = 2112299957 is a prime.

It is a super-2 number, since 2×2112300021² = 8923622757433200882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112300023) 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, 27080731 + ... + 27080808.

It is an arithmetic number, because the mean of its divisors is an integer number (379130780).

Almost surely, 2^2112300021 is an apocalyptic number.

It is an amenable number.

2112300021 is a deficient number, since it is larger than the sum of its proper divisors (920746219).

2112300021 is a wasteful number, since it uses less digits than its factorization.

2112300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54161555.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2112300021 is about 45959.7652409148. The cubic root of 2112300021 is about 1283.0744821305.

Adding to 2112300021 its reverse (1200032112), we get a palindrome (3312332133).

The spelling of 2112300021 in words is "two billion, one hundred twelve million, three hundred thousand, twenty-one".