22301213 has 4 divisors (see below), whose sum is σ = 24328608. Its totient is φ = 20273820.

The previous prime is 22301207. The next prime is 22301239. The reversal of 22301213 is 31210322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22301213 - 2¹⁰ = 22300189 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 (22301273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013681 + ... + 1013702.

It is an arithmetic number, because the mean of its divisors is an integer number (6082152).

Almost surely, 2^22301213 is an apocalyptic number.

It is an amenable number.

22301213 is a deficient number, since it is larger than the sum of its proper divisors (2027395).

22301213 is a wasteful number, since it uses less digits than its factorization.

22301213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027394.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22301213 is about 4722.4160130171. The cubic root of 22301213 is about 281.4769448584.

Adding to 22301213 its reverse (31210322), we get a palindrome (53511535).

It can be divided in two parts, 2230 and 1213, that added together give a palindrome (3443).

The spelling of 22301213 in words is "twenty-two million, three hundred one thousand, two hundred thirteen".