| Base | Representation |
|---|---|
| bin | 100011110010101… |
| … | …1111110110011000 |
| 3 | 10002200220201220101 |
| 4 | 1013211133312120 |
| 5 | 4424424341440 |
| 6 | 315101505144 |
| 7 | 41522302030 |
| oct | 10745376630 |
| 9 | 3080821811 |
| 10 | 1201012120 |
| 11 | 566a38200 |
| 12 | 2962721b4 |
| 13 | 161a8a079 |
| 14 | b57148c0 |
| 15 | 7068a69a |
| hex | 4795fd98 |
1201012120 has 96 divisors (see below), whose sum is σ = 3394692000. Its totient is φ = 374330880.
The previous prime is 1201012093. The next prime is 1201012181. The reversal of 1201012120 is 212101021.
It is a super-2 number, since 2×12010121202 = 2884860224773788800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a junction number, because it is equal to n+sod(n) for n = 1201012097 and 1201012106.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16156 + ... + 51604.
It is an arithmetic number, because the mean of its divisors is an integer number (35361375).
Almost surely, 21201012120 is an apocalyptic number.
1201012120 is a gapful number since it is divisible by the number (10) 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 1201012120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1697346000).
1201012120 is an abundant number, since it is smaller than the sum of its proper divisors (2193679880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1201012120 is a wasteful number, since it uses less digits than its factorization.
1201012120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35489 (or 35474 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 10.
The square root of 1201012120 is about 34655.6217661724. The cubic root of 1201012120 is about 1062.9572457801.
Adding to 1201012120 its reverse (212101021), we get a palindrome (1413113141).
It can be divided in two parts, 120101 and 2120, that added together give a palindrome (122221).
The spelling of 1201012120 in words is "one billion, two hundred one million, twelve thousand, one hundred twenty".
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