| Base | Representation |
|---|---|
| bin | 1100110011111110110… |
| … | …1011101000010011010 |
| 3 | 210001010222221220211200 |
| 4 | 3030333231131002122 |
| 5 | 12101242211241442 |
| 6 | 245041304335030 |
| 7 | 21621404634645 |
| oct | 3147755350232 |
| 9 | 701128856750 |
| 10 | 220112212122 |
| 11 | 85392672910 |
| 12 | 367ab174476 |
| 13 | 179ab024cca |
| 14 | a921256a5c |
| 15 | 5ad3ea834c |
| hex | 333fb5d09a |
220112212122 has 96 divisors (see below), whose sum is σ = 546753430080. Its totient is φ = 63388604160.
The previous prime is 220112212097. The next prime is 220112212127. The reversal of 220112212122 is 221212211022.
It is a happy number.
220112212122 is a `hidden beast` number, since 220 + 11 + 221 + 212 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 220112212095 and 220112212104.
It is not an unprimeable number, because it can be changed into a prime (220112212127) 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, 34347 + ... + 664382.
It is an arithmetic number, because the mean of its divisors is an integer number (5695348230).
Almost surely, 2220112212122 is an apocalyptic number.
220112212122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 220112212122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273376715040).
220112212122 is an abundant number, since it is smaller than the sum of its proper divisors (326641217958).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220112212122 is a wasteful number, since it uses less digits than its factorization.
220112212122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 698828 (or 698825 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 18.
Adding to 220112212122 its reverse (221212211022), we get a palindrome (441324423144).
It can be divided in two parts, 220112 and 212122, that added together give a palindrome (432234).
The spelling of 220112212122 in words is "two hundred twenty billion, one hundred twelve million, two hundred twelve thousand, one hundred twenty-two".
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