22214791 has 4 divisors (see below), whose sum is σ = 22633992. Its totient is φ = 21795592.

The previous prime is 22214779. The next prime is 22214807. The reversal of 22214791 is 19741222.

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 22214791 - 2⁷ = 22214663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22214771) 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, 209521 + ... + 209626.

It is an arithmetic number, because the mean of its divisors is an integer number (5658498).

Almost surely, 2^22214791 is an apocalyptic number.

22214791 is a deficient number, since it is larger than the sum of its proper divisors (419201).

22214791 is an equidigital number, since it uses as much as digits as its factorization.

22214791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419200.

The product of its digits is 2016, while the sum is 28.

The square root of 22214791 is about 4713.2569418609. The cubic root of 22214791 is about 281.1128795955.

It can be divided in two parts, 22214 and 791, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 22214791 in words is "twenty-two million, two hundred fourteen thousand, seven hundred ninety-one".