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22213000321 = 191116298431
BaseRepresentation
bin10100101011111111…
…110111110010000001
32010100001200022222121
4110223333313302001
5330443012002241
614112101404241
71414313246611
oct245377676201
963301608877
1022213000321
119469728a06
12437b109681
13213000b695
14110a188a41
158a01a4ad1
hex52bff7c81

22213000321 has 4 divisors (see below), whose sum is σ = 22329298944. Its totient is φ = 22096701700.

The previous prime is 22213000279. The next prime is 22213000409. The reversal of 22213000321 is 12300031222.

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 22213000321 - 225 = 22179445889 is a prime.

It is a super-2 number, since 2×222130003212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22213000295 and 22213000304.

It is not an unprimeable number, because it can be changed into a prime (22213009321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58149025 + ... + 58149406.

It is an arithmetic number, because the mean of its divisors is an integer number (5582324736).

Almost surely, 222213000321 is an apocalyptic number.

It is an amenable number.

22213000321 is a deficient number, since it is larger than the sum of its proper divisors (116298623).

22213000321 is a wasteful number, since it uses less digits than its factorization.

22213000321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116298622.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22213000321 its reverse (12300031222), we get a palindrome (34513031543).

The spelling of 22213000321 in words is "twenty-two billion, two hundred thirteen million, three hundred twenty-one", and thus it is an aban number.

Divisors: 1 191 116298431 22213000321