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22132201 = 7131072273
BaseRepresentation
bin101010001101…
…1010111101001
31112122102200011
41110123113221
521131212301
62110211521
7356056240
oct124332751
945572604
1022132201
1111547283
1274b3ba1
13477baa0
142d21957
151e22a51
hex151b5e9

22132201 has 16 divisors (see below), whose sum is σ = 27506304. Its totient is φ = 17339904.

The previous prime is 22132189. The next prime is 22132211. The reversal of 22132201 is 10223122.

It is a cyclic number.

It is not a de Polignac number, because 22132201 - 27 = 22132073 is a prime.

It is a super-3 number, since 3×221322013 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (22132211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8601 + ... + 10873.

It is an arithmetic number, because the mean of its divisors is an integer number (1719144).

Almost surely, 222132201 is an apocalyptic number.

It is an amenable number.

22132201 is a deficient number, since it is larger than the sum of its proper divisors (5374103).

22132201 is a wasteful number, since it uses less digits than its factorization.

22132201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22132201 is about 4704.4873259474. The cubic root of 22132201 is about 280.7640737865.

Adding to 22132201 its reverse (10223122), we get a palindrome (32355323).

The spelling of 22132201 in words is "twenty-two million, one hundred thirty-two thousand, two hundred one".

Divisors: 1 7 13 91 107 749 1391 2273 9737 15911 29549 206843 243211 1702477 3161743 22132201