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22210201 = 132958913
BaseRepresentation
bin101010010111…
…0011010011001
31112210101200001
41110232122121
521141211301
62112013001
7356532526
oct124563231
945711601
1022210201
111159a942
127531161
1347a8440
142d4214d
151e3ac01
hex152e699

22210201 has 8 divisors (see below), whose sum is σ = 24743880. Its totient is φ = 19794432.

The previous prime is 22210193. The next prime is 22210207. The reversal of 22210201 is 10201222.

It can be written as a sum of positive squares in 4 ways, for example, as 2175625 + 20034576 = 1475^2 + 4476^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22210201 - 23 = 22210193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22210207) 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 7 ways as a sum of consecutive naturals, for example, 29080 + ... + 29833.

It is an arithmetic number, because the mean of its divisors is an integer number (3092985).

Almost surely, 222210201 is an apocalyptic number.

It is an amenable number.

22210201 is a deficient number, since it is larger than the sum of its proper divisors (2533679).

22210201 is a wasteful number, since it uses less digits than its factorization.

22210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58955.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 22210201 is about 4712.7699922657. The cubic root of 22210201 is about 281.0935171657.

Adding to 22210201 its reverse (10201222), we get a palindrome (32411423).

It can be divided in two parts, 222 and 10201, that multiplied together give a palindrome (2264622).

The spelling of 22210201 in words is "twenty-two million, two hundred ten thousand, two hundred one".

Divisors: 1 13 29 377 58913 765869 1708477 22210201