22213019 has 4 divisors (see below), whose sum is σ = 22929600. Its totient is φ = 21496440.

The previous prime is 22213007. The next prime is 22213049. The reversal of 22213019 is 91031222.

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 22213019 - 2⁸ = 22212763 is a prime.

It is a super-2 number, since 2×22213019² = 986836426188722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22213049) 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, 358244 + ... + 358305.

It is an arithmetic number, because the mean of its divisors is an integer number (5732400).

Almost surely, 2^22213019 is an apocalyptic number.

22213019 is a deficient number, since it is larger than the sum of its proper divisors (716581).

22213019 is an equidigital number, since it uses as much as digits as its factorization.

22213019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716580.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 22213019 is about 4713.0689576962. The cubic root of 22213019 is about 281.1054049169.

The spelling of 22213019 in words is "twenty-two million, two hundred thirteen thousand, nineteen".