21112095 has 8 divisors (see below), whose sum is σ = 33779376. Its totient is φ = 11259776.

The previous prime is 21112093. The next prime is 21112103. The reversal of 21112095 is 59021112.

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

It is a cyclic number.

It is not a de Polignac number, because 21112095 - 2¹ = 21112093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703722 + ... + 703751.

It is an arithmetic number, because the mean of its divisors is an integer number (4222422).

Almost surely, 2^21112095 is an apocalyptic number.

21112095 is a deficient number, since it is larger than the sum of its proper divisors (12667281).

21112095 is a wasteful number, since it uses less digits than its factorization.

21112095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407481.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 21112095 is about 4594.7899843192. The cubic root of 21112095 is about 276.3824382203.

The spelling of 21112095 in words is "twenty-one million, one hundred twelve thousand, ninety-five".