22212003 has 8 divisors (see below), whose sum is σ = 32308416. Its totient is φ = 13461800.

The previous prime is 22211993. The next prime is 22212017. The reversal of 22212003 is 30021222.

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

It is not a de Polignac number, because 22212003 - 2⁶ = 22211939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22212003.

It is not an unprimeable number, because it can be changed into a prime (22212403) 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, 336513 + ... + 336578.

It is an arithmetic number, because the mean of its divisors is an integer number (4038552).

Almost surely, 2^22212003 is an apocalyptic number.

22212003 is a deficient number, since it is larger than the sum of its proper divisors (10096413).

22212003 is a wasteful number, since it uses less digits than its factorization.

22212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673105.

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

The square root of 22212003 is about 4712.9611710686. The cubic root of 22212003 is about 281.1011190302.

Adding to 22212003 its reverse (30021222), we get a palindrome (52233225).

It can be divided in two parts, 2221 and 2003, that added together give a palindrome (4224).

The spelling of 22212003 in words is "twenty-two million, two hundred twelve thousand, three".