Base | Representation |
---|---|
bin | 10001100111000110010… |
… | …001010000010011111001 |
3 | 11021200202202210202020100 |
4 | 101213012101100103321 |
5 | 124312003312102301 |
6 | 2323544103550013 |
7 | 153302121105423 |
oct | 21470621202371 |
9 | 4250682722210 |
10 | 1210212222201 |
11 | 427280281854 |
12 | 17666975b309 |
13 | 8a17924b638 |
14 | 42808931813 |
15 | 21731519286 |
hex | 119c64504f9 |
1210212222201 has 12 divisors (see below), whose sum is σ = 1769145578928. Its totient is φ = 797087567544.
The previous prime is 1210212222181. The next prime is 1210212222203. The reversal of 1210212222201 is 1022222120121.
It is a happy number.
1210212222201 is a `hidden beast` number, since 1 + 210 + 212 + 22 + 220 + 1 = 666.
It is not a de Polignac number, because 1210212222201 - 210 = 1210212221177 is a prime.
It is a super-2 number, since 2×12102122222012 (a number of 25 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1210212222203) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 810047595 + ... + 810049088.
It is an arithmetic number, because the mean of its divisors is an integer number (147428798244).
Almost surely, 21210212222201 is an apocalyptic number.
It is an amenable number.
1210212222201 is a deficient number, since it is larger than the sum of its proper divisors (558933356727).
1210212222201 is a wasteful number, since it uses less digits than its factorization.
1210212222201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1620096772 (or 1620096769 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 18.
Adding to 1210212222201 its reverse (1022222120121), we get a palindrome (2232434342322).
The spelling of 1210212222201 in words is "one trillion, two hundred ten billion, two hundred twelve million, two hundred twenty-two thousand, two hundred one".
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