22071201 has 4 divisors (see below), whose sum is σ = 29428272. Its totient is φ = 14714132.

The previous prime is 22071193. The next prime is 22071209. The reversal of 22071201 is 10217022.

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 an interprime number because it is at equal distance from previous prime (22071193) and next prime (22071209).

It is a cyclic number.

It is not a de Polignac number, because 22071201 - 2³ = 22071193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22071209) 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 3 ways as a sum of consecutive naturals, for example, 3678531 + ... + 3678536.

It is an arithmetic number, because the mean of its divisors is an integer number (7357068).

Almost surely, 2^22071201 is an apocalyptic number.

It is an amenable number.

22071201 is a deficient number, since it is larger than the sum of its proper divisors (7357071).

22071201 is an equidigital number, since it uses as much as digits as its factorization.

22071201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357070.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 22071201 is about 4697.9996807152. Note that the first 3 decimals coincide. The cubic root of 22071201 is about 280.5058923969.

Adding to 22071201 its reverse (10217022), we get a palindrome (32288223).

The spelling of 22071201 in words is "twenty-two million, seventy-one thousand, two hundred one".