Base | Representation |
---|---|
bin | 1011000000011100010010… |
… | …0110001100100010111111 |
3 | 1120211221221121100010002201 |
4 | 2300013010212030202333 |
5 | 3041240322113020111 |
6 | 41423403401332331 |
7 | 2356233216030115 |
oct | 260070446144277 |
9 | 46757847303081 |
10 | 12102221220031 |
11 | 3946583413438 |
12 | 14355a94970a7 |
13 | 69a3084504b7 |
14 | 2dba71a41ab5 |
15 | 15ec171696c1 |
hex | b01c498c8bf |
12102221220031 has 8 divisors (see below), whose sum is σ = 12383769556224. Its totient is φ = 11820677489880.
The previous prime is 12102221220007. The next prime is 12102221220073. The reversal of 12102221220031 is 13002212220121.
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 12102221220031 - 25 = 12102221219999 is a prime.
It is a super-2 number, since 2×121022212200312 (a number of 27 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12102221219990 and 12102221220008.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12102221220091) 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, 4481370 + ... + 6654856.
It is an arithmetic number, because the mean of its divisors is an integer number (1547971194528).
Almost surely, 212102221220031 is an apocalyptic number.
12102221220031 is a deficient number, since it is larger than the sum of its proper divisors (281548336193).
12102221220031 is a wasteful number, since it uses less digits than its factorization.
12102221220031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2303021.
The product of its (nonzero) digits is 192, while the sum is 19.
Adding to 12102221220031 its reverse (13002212220121), we get a palindrome (25104433440152).
The spelling of 12102221220031 in words is "twelve trillion, one hundred two billion, two hundred twenty-one million, two hundred twenty thousand, thirty-one".
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