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10013011221 = 329115092083
BaseRepresentation
bin10010101001101001…
…00110110100010101
3221211211020200011110
421110310212310111
5131001312324341
64333325325233
7503063122353
oct112464466425
927754220143
1010013011221
1142790a1594
121b35406819
13c375c4815
146adb8c7d3
153d90cd216
hex254d26d15

10013011221 has 8 divisors (see below), whose sum is σ = 13811050080. Its totient is φ = 6445156592.

The previous prime is 10013011219. The next prime is 10013011223. The reversal of 10013011221 is 12211031001.

It is an interprime number because it is at equal distance from previous prime (10013011219) and next prime (10013011223).

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 10013011221 - 21 = 10013011219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10013011197 and 10013011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10013011223) 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, 57545955 + ... + 57546128.

It is an arithmetic number, because the mean of its divisors is an integer number (1726381260).

Almost surely, 210013011221 is an apocalyptic number.

It is an amenable number.

10013011221 is a deficient number, since it is larger than the sum of its proper divisors (3798038859).

10013011221 is a wasteful number, since it uses less digits than its factorization.

10013011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115092115.

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

Adding to 10013011221 its reverse (12211031001), we get a palindrome (22224042222).

The spelling of 10013011221 in words is "ten billion, thirteen million, eleven thousand, two hundred twenty-one".

Divisors: 1 3 29 87 115092083 345276249 3337670407 10013011221