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BaseRepresentation
bin101001111101…
…1011000110001
31112101202222022
41103323120301
521113014301
62103321225
7355002305
oct123733061
945352868
1022001201
1111467912
127450215
134734281
142cc9d05
151de8d1b
hex14fb631

22001201 has 8 divisors (see below), whose sum is σ = 22486464. Its totient is φ = 21518640.

The previous prime is 22001197. The next prime is 22001207. The reversal of 22001201 is 10210022.

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 22001201 - 22 = 22001197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22001207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29900 + ... + 30626.

It is an arithmetic number, because the mean of its divisors is an integer number (2810808).

Almost surely, 222001201 is an apocalyptic number.

It is an amenable number.

22001201 is a deficient number, since it is larger than the sum of its proper divisors (485263).

22001201 is an equidigital number, since it uses as much as digits as its factorization.

22001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 22001201 is about 4690.5437851064. The cubic root of 22001201 is about 280.2090318352.

Adding to 22001201 its reverse (10210022), we get a palindrome (32211223).

The spelling of 22001201 in words is "twenty-two million, one thousand, two hundred one".

Divisors: 1 53 571 727 30263 38531 415117 22001201