Search a number
-
+
10201201221 = 311330092039
BaseRepresentation
bin10011000000000100…
…11111101001000101
3222022221100201022110
421200002133221011
5131343001414341
64404131051233
7510536531301
oct114002375105
928287321273
1010201201221
114365348512
121b88440b19
13c675a5453
146cab78d01
153ea8a3216
hex26009fa45

10201201221 has 8 divisors (see below), whose sum is σ = 13721970240. Its totient is φ = 6740616512.

The previous prime is 10201201207. The next prime is 10201201249. The reversal of 10201201221 is 12210210201.

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 10201201221 - 213 = 10201193029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10201201197 and 10201201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201200221) 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, 15045681 + ... + 15046358.

It is an arithmetic number, because the mean of its divisors is an integer number (1715246280).

Almost surely, 210201201221 is an apocalyptic number.

It is an amenable number.

10201201221 is a deficient number, since it is larger than the sum of its proper divisors (3520769019).

10201201221 is a wasteful number, since it uses less digits than its factorization.

10201201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30092155.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10201201221 its reverse (12210210201), we get a palindrome (22411411422).

The spelling of 10201201221 in words is "ten billion, two hundred one million, two hundred one thousand, two hundred twenty-one".

Divisors: 1 3 113 339 30092039 90276117 3400400407 10201201221