22203263604 has 12 divisors (see below), whose sum is σ = 51807615104. Its totient is φ = 7401087864.

The previous prime is 22203263603. The next prime is 22203263609. The reversal of 22203263604 is 40636230222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×22203263604² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22203263603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925135972 + ... + 925135995.

Almost surely, 2^22203263604 is an apocalyptic number.

It is an amenable number.

22203263604 is an abundant number, since it is smaller than the sum of its proper divisors (29604351500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22203263604 is a wasteful number, since it uses less digits than its factorization.

22203263604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850271974 (or 1850271972 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 22203263604 its reverse (40636230222), we get a palindrome (62839493826).

The spelling of 22203263604 in words is "twenty-two billion, two hundred three million, two hundred sixty-three thousand, six hundred four".