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12220210000221 = 310887737412891
BaseRepresentation
bin1011000111010011110101…
…0001101011000101011101
31121021020111110001011200120
42301310331101223011131
53100203442230001341
641553515330345153
72400611124100656
oct261647521530535
947236443034616
1012220210000221
11399161aa68323
12145443772b1b9
136a848ca62672
14303665c0c52d
15162d20793066
hexb1d3d46b15d

12220210000221 has 8 divisors (see below), whose sum is σ = 16293763420704. Its totient is φ = 8146731623280.

The previous prime is 12220210000217. The next prime is 12220210000231. The reversal of 12220210000221 is 12200001202221.

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

It is not a de Polignac number, because 12220210000221 - 22 = 12220210000217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12220210000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220210000231) 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, 18379815 + ... + 19033076.

It is an arithmetic number, because the mean of its divisors is an integer number (2036720427588).

Almost surely, 212220210000221 is an apocalyptic number.

It is an amenable number.

12220210000221 is a deficient number, since it is larger than the sum of its proper divisors (4073553420483).

12220210000221 is a wasteful number, since it uses less digits than its factorization.

12220210000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37521771.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12220210000221 its reverse (12200001202221), we get a palindrome (24420211202442).

The spelling of 12220210000221 in words is "twelve trillion, two hundred twenty billion, two hundred ten million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 3 108877 326631 37412891 112238673 4073403333407 12220210000221