| Base | Representation |
|---|---|
| bin | 10001100111000110110… |
| … | …111000001000010011000 |
| 3 | 11021200210110102122222200 |
| 4 | 101213012313001002120 |
| 5 | 124312013330333422 |
| 6 | 2323545100050200 |
| 7 | 153302301204264 |
| oct | 21470667010230 |
| 9 | 4250713378880 |
| 10 | 1210222121112 |
| 11 | 427285922a74 |
| 12 | 176670b33960 |
| 13 | 8a17b306194 |
| 14 | 42809d8b0a4 |
| 15 | 217323222ac |
| hex | 119c6dc1098 |
1210222121112 has 192 divisors, whose sum is σ = 3565967652000. Its totient is φ = 369241804800.
The previous prime is 1210222121107. The next prime is 1210222121159. The reversal of 1210222121112 is 2111212220121.
1210222121112 is a `hidden beast` number, since 1 + 210 + 222 + 121 + 112 = 666.
It is a super-2 number, since 2×12102221211122 (a number of 25 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
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 47 ways as a sum of consecutive naturals, for example, 122227362 + ... + 122237262.
Almost surely, 21210222121112 is an apocalyptic number.
1210222121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1210222121112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782983826000).
1210222121112 is an abundant number, since it is smaller than the sum of its proper divisors (2355745530888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210222121112 is a wasteful number, since it uses less digits than its factorization.
1210222121112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12666 (or 12659 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 18.
Adding to 1210222121112 its reverse (2111212220121), we get a palindrome (3321434341233).
Subtracting 1210222121112 from its reverse (2111212220121), we obtain a palindrome (900990099009).
The spelling of 1210222121112 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred twelve".
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