22021095 has 16 divisors (see below), whose sum is σ = 37088640. Its totient is φ = 11126304.

The previous prime is 22021093. The next prime is 22021123. The reversal of 22021095 is 59012022.

It is not a de Polignac number, because 22021095 - 2¹ = 22021093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021093) 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 15 ways as a sum of consecutive naturals, for example, 38349 + ... + 38918.

It is an arithmetic number, because the mean of its divisors is an integer number (2318040).

Almost surely, 2^22021095 is an apocalyptic number.

22021095 is a deficient number, since it is larger than the sum of its proper divisors (15067545).

22021095 is a wasteful number, since it uses less digits than its factorization.

22021095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77294.

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

The square root of 22021095 is about 4692.6639555800. The cubic root of 22021095 is about 280.2934635765.

The spelling of 22021095 in words is "twenty-two million, twenty-one thousand, ninety-five".