Base | Representation |
---|---|
bin | 100000001100010010101… |
… | …101010000011101010110 |
3 | 21211111010120000000221210 |
4 | 200030102231100131112 |
5 | 242221112313324342 |
6 | 4412140351122250 |
7 | 315553631556606 |
oct | 40142255203526 |
9 | 7744116000853 |
10 | 2212222011222 |
11 | 78321a71aa03 |
12 | 2b88b0813386 |
13 | 1307c4a0b042 |
14 | 79101c60c06 |
15 | 3c82942879c |
hex | 20312b50756 |
2212222011222 has 32 divisors (see below), whose sum is σ = 4572690914304. Its totient is φ = 712757052000.
The previous prime is 2212222011221. The next prime is 2212222011283. The reversal of 2212222011222 is 2221102222122.
It is a super-2 number, since 2×22122220112222 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2212222011221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7037029 + ... + 7344672.
It is an arithmetic number, because the mean of its divisors is an integer number (142896591072).
Almost surely, 22212222011222 is an apocalyptic number.
2212222011222 is an abundant number, since it is smaller than the sum of its proper divisors (2360468903082).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2212222011222 is a wasteful number, since it uses less digits than its factorization.
2212222011222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14382564.
The product of its (nonzero) digits is 512, while the sum is 21.
Adding to 2212222011222 its reverse (2221102222122), we get a palindrome (4433324233344).
The spelling of 2212222011222 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, eleven thousand, two hundred twenty-two".
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