Base | Representation |
---|---|
bin | 1011000111011010111100… |
… | …1100010111000101011001 |
3 | 1121021102102122022200220101 |
4 | 2301312233030113011121 |
5 | 3100221401012211301 |
6 | 41554433122255401 |
7 | 2401006362106510 |
oct | 261665714270531 |
9 | 47242378280811 |
10 | 12222121210201 |
11 | 399241087a701 |
12 | 145488b7b7561 |
13 | 6a87059bc746 |
14 | 3037a7993677 |
15 | 162dd3467701 |
hex | b1daf317159 |
12222121210201 has 48 divisors (see below), whose sum is σ = 14915820816000. Its totient is φ = 9807829422336.
The previous prime is 12222121210199. The next prime is 12222121210207. The reversal of 12222121210201 is 10201212122221.
It is not a de Polignac number, because 12222121210201 - 21 = 12222121210199 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12222121210207) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 438322006 + ... + 438349888.
It is an arithmetic number, because the mean of its divisors is an integer number (310746267000).
Almost surely, 212222121210201 is an apocalyptic number.
It is an amenable number.
12222121210201 is a deficient number, since it is larger than the sum of its proper divisors (2693699605799).
12222121210201 is a wasteful number, since it uses less digits than its factorization.
12222121210201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29966 (or 29947 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 19.
Adding to 12222121210201 its reverse (10201212122221), we get a palindrome (22423333332422).
The spelling of 12222121210201 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred ten thousand, two hundred one".
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