22210509 has 8 divisors (see below), whose sum is σ = 29738880. Its totient is φ = 14744576.

The previous prime is 22210501. The next prime is 22210511. The reversal of 22210509 is 90501222.

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

It is a cyclic number.

It is not a de Polignac number, because 22210509 - 2³ = 22210501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14772 + ... + 16205.

It is an arithmetic number, because the mean of its divisors is an integer number (3717360).

Almost surely, 2^22210509 is an apocalyptic number.

It is an amenable number.

22210509 is a deficient number, since it is larger than the sum of its proper divisors (7528371).

22210509 is a wasteful number, since it uses less digits than its factorization.

22210509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31219.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 22210509 is about 4712.8026693253. The cubic root of 22210509 is about 281.0948165146.

It can be divided in two parts, 222 and 10509, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 22210509 in words is "twenty-two million, two hundred ten thousand, five hundred nine".