22001043 has 16 divisors (see below), whose sum is σ = 31154976. Its totient is φ = 13762560.

The previous prime is 22001033. The next prime is 22001047. The reversal of 22001043 is 34010022.

It is not a de Polignac number, because 22001043 - 2⁸ = 22000787 is a prime.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (22001047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32355 + ... + 33027.

It is an arithmetic number, because the mean of its divisors is an integer number (1947186).

Almost surely, 2^22001043 is an apocalyptic number.

22001043 is a deficient number, since it is larger than the sum of its proper divisors (9153933).

22001043 is a wasteful number, since it uses less digits than its factorization.

22001043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22001043 is about 4690.5269426793. The cubic root of 22001043 is about 280.2083610668.

Adding to 22001043 its reverse (34010022), we get a palindrome (56011065).

The spelling of 22001043 in words is "twenty-two million, one thousand, forty-three".