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22203133021 = 28797712099
BaseRepresentation
bin10100101011011010…
…001110110001011101
32010022101010000121001
4110223122032301131
5330433000224041
614111110110301
71414133342146
oct245332166135
963271100531
1022203133021
1194640a9513
12437794b391
13212ac65344
141108b3aacd
1589e3a6131
hex52b68ec5d

22203133021 has 4 divisors (see below), whose sum is σ = 22210848000. Its totient is φ = 22195418044.

The previous prime is 22203133019. The next prime is 22203133027. The reversal of 22203133021 is 12033130222.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12033130222 = 26016565111.

It is a cyclic number.

It is not a de Polignac number, because 22203133021 - 21 = 22203133019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22203133021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22203133027) 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, 3853171 + ... + 3858928.

It is an arithmetic number, because the mean of its divisors is an integer number (5552712000).

Almost surely, 222203133021 is an apocalyptic number.

It is an amenable number.

22203133021 is a deficient number, since it is larger than the sum of its proper divisors (7714979).

22203133021 is an equidigital number, since it uses as much as digits as its factorization.

22203133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7714978.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 22203133021 its reverse (12033130222), we get a palindrome (34236263243).

The spelling of 22203133021 in words is "twenty-two billion, two hundred three million, one hundred thirty-three thousand, twenty-one".

Divisors: 1 2879 7712099 22203133021