22213235 has 8 divisors (see below), whose sum is σ = 29079216. Its totient is φ = 16155040.

The previous prime is 22213183. The next prime is 22213259. The reversal of 22213235 is 53231222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22213235 - 2²⁰ = 21164659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201884 + ... + 201993.

It is an arithmetic number, because the mean of its divisors is an integer number (3634902).

Almost surely, 2^22213235 is an apocalyptic number.

22213235 is a deficient number, since it is larger than the sum of its proper divisors (6865981).

22213235 is a wasteful number, since it uses less digits than its factorization.

22213235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403893.

The product of its digits is 720, while the sum is 20.

The square root of 22213235 is about 4713.0918726458. The cubic root of 22213235 is about 281.1063160728.

Adding to 22213235 its reverse (53231222), we get a palindrome (75444457).

The spelling of 22213235 in words is "twenty-two million, two hundred thirteen thousand, two hundred thirty-five".