21202095 has 16 divisors (see below), whose sum is σ = 34000992. Its totient is φ = 11281920.

The previous prime is 21202079. The next prime is 21202121. The reversal of 21202095 is 59020212.

It is not a de Polignac number, because 21202095 - 2⁴ = 21202079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6459 + ... + 9171.

It is an arithmetic number, because the mean of its divisors is an integer number (2125062).

Almost surely, 2^21202095 is an apocalyptic number.

21202095 is a deficient number, since it is larger than the sum of its proper divisors (12798897).

21202095 is a wasteful number, since it uses less digits than its factorization.

21202095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 21202095 is about 4604.5732701305. The cubic root of 21202095 is about 276.7746171538.

The spelling of 21202095 in words is "twenty-one million, two hundred two thousand, ninety-five".