22471051 has 4 divisors (see below), whose sum is σ = 22511952. Its totient is φ = 22430152.

The previous prime is 22471039. The next prime is 22471061. The reversal of 22471051 is 15017422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22471051 - 2¹¹ = 22469003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22471021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19615 + ... + 20728.

It is an arithmetic number, because the mean of its divisors is an integer number (5627988).

Almost surely, 2^22471051 is an apocalyptic number.

22471051 is a deficient number, since it is larger than the sum of its proper divisors (40901).

22471051 is an equidigital number, since it uses as much as digits as its factorization.

22471051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40900.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 22471051 is about 4740.3640155583. The cubic root of 22471051 is about 282.1896809142.

Adding to 22471051 its reverse (15017422), we get a palindrome (37488473).

The spelling of 22471051 in words is "twenty-two million, four hundred seventy-one thousand, fifty-one".