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22222143001 = 53419285717
BaseRepresentation
bin10100101100100010…
…101111111000011001
32010100200212211101101
4110230202233320121
5331002332034001
614113025351401
71414454045632
oct245442577031
963320784341
1022222143001
119473902a43
124382198561
132131b8cc56
14110b488889
158a0dada01
hex52c8afe19

22222143001 has 4 divisors (see below), whose sum is σ = 22641428772. Its totient is φ = 21802857232.

The previous prime is 22222142927. The next prime is 22222143007. The reversal of 22222143001 is 10034122222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9094483225 + 13127659776 = 95365^2 + 114576^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222143001 - 215 = 22222110233 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 22222143001.

It is not an unprimeable number, because it can be changed into a prime (22222143007) 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, 209642806 + ... + 209642911.

It is an arithmetic number, because the mean of its divisors is an integer number (5660357193).

Almost surely, 222222143001 is an apocalyptic number.

It is an amenable number.

22222143001 is a deficient number, since it is larger than the sum of its proper divisors (419285771).

22222143001 is an equidigital number, since it uses as much as digits as its factorization.

22222143001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419285770.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22222143001 its reverse (10034122222), we get a palindrome (32256265223).

The spelling of 22222143001 in words is "twenty-two billion, two hundred twenty-two million, one hundred forty-three thousand, one".

Divisors: 1 53 419285717 22222143001