22071073 has 4 divisors (see below), whose sum is σ = 22400560. Its totient is φ = 21741588.

The previous prime is 22071067. The next prime is 22071097. The reversal of 22071073 is 37017022.

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 22071073 - 2⁵ = 22071041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22071043) 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, 164643 + ... + 164776.

It is an arithmetic number, because the mean of its divisors is an integer number (5600140).

Almost surely, 2^22071073 is an apocalyptic number.

It is an amenable number.

22071073 is a deficient number, since it is larger than the sum of its proper divisors (329487).

22071073 is an equidigital number, since it uses as much as digits as its factorization.

22071073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329486.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 22071073 is about 4697.9860578763. The cubic root of 22071073 is about 280.5053501394.

Adding to 22071073 its reverse (37017022), we get a palindrome (59088095).

The spelling of 22071073 in words is "twenty-two million, seventy-one thousand, seventy-three".