22201245 has 24 divisors (see below), whose sum is σ = 41981472. Its totient is φ = 10764000.

The previous prime is 22201243. The next prime is 22201247. The reversal of 22201245 is 54210222.

It is an interprime number because it is at equal distance from previous prime (22201243) and next prime (22201247).

It is not a de Polignac number, because 22201245 - 2¹ = 22201243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21931 + ... + 22920.

It is an arithmetic number, because the mean of its divisors is an integer number (1749228).

Almost surely, 2^22201245 is an apocalyptic number.

It is an amenable number.

22201245 is a deficient number, since it is larger than the sum of its proper divisors (19780227).

22201245 is a wasteful number, since it uses less digits than its factorization.

22201245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44873 (or 44870 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 22201245 is about 4711.8197121707. The cubic root of 22201245 is about 281.0557295443.

Adding to 22201245 its reverse (54210222), we get a palindrome (76411467).

The spelling of 22201245 in words is "twenty-two million, two hundred one thousand, two hundred forty-five".