Base | Representation |
---|---|
bin | 10001110010001010111… |
… | …101100101011111010010 |
3 | 11022211110101201202001222 |
4 | 101302022331211133102 |
5 | 130010331120042320 |
6 | 2333232001325042 |
7 | 154202554361660 |
oct | 21621275453722 |
9 | 4284411652058 |
10 | 1222102112210 |
11 | 431321867131 |
12 | 178a27636782 |
13 | 8b32263ca05 |
14 | 43215a89c30 |
15 | 21bca289825 |
hex | 11c8af657d2 |
1222102112210 has 64 divisors (see below), whose sum is σ = 2554554240000. Its totient is φ = 412290058752.
The previous prime is 1222102112191. The next prime is 1222102112227. The reversal of 1222102112210 is 122112012221.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1243166 + ... + 1997414.
It is an arithmetic number, because the mean of its divisors is an integer number (39914910000).
Almost surely, 21222102112210 is an apocalyptic number.
1222102112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1222102112210 is an abundant number, since it is smaller than the sum of its proper divisors (1332452127790).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1222102112210 is a wasteful number, since it uses less digits than its factorization.
1222102112210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 754635.
The product of its (nonzero) digits is 64, while the sum is 17.
Adding to 1222102112210 its reverse (122112012221), we get a palindrome (1344214124431).
The spelling of 1222102112210 in words is "one trillion, two hundred twenty-two billion, one hundred two million, one hundred twelve thousand, two hundred ten".
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