Base | Representation |
---|---|
bin | 1011000111010011011011… |
… | …0010101011010001011110 |
3 | 1121021020012212100010020200 |
4 | 2301310312302223101132 |
5 | 3100203231402224410 |
6 | 41553500442524330 |
7 | 2400605333311623 |
oct | 261646662532136 |
9 | 47236185303220 |
10 | 12220101211230 |
11 | 3991574613570 |
12 | 14544072066a6 |
13 | 6a8473362593 |
14 | 3036555b034a |
15 | 162d15e543c0 |
hex | b1d36cab45e |
12220101211230 has 96 divisors (see below), whose sum is σ = 34731823845888. Its totient is φ = 2956365604800.
The previous prime is 12220101211211. The next prime is 12220101211231. The reversal of 12220101211230 is 3211210102221.
12220101211230 is a `hidden beast` number, since 1 + 2 + 220 + 1 + 0 + 1 + 211 + 230 = 666.
It is a super-2 number, since 2×122201012112302 (a number of 27 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 not an unprimeable number, because it can be changed into a prime (12220101211231) 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, 12190906 + ... + 13155165.
It is an arithmetic number, because the mean of its divisors is an integer number (361789831728).
Almost surely, 212220101211230 is an apocalyptic number.
12220101211230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12220101211230 is an abundant number, since it is smaller than the sum of its proper divisors (22511722634658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12220101211230 is a wasteful number, since it uses less digits than its factorization.
12220101211230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25346582 (or 25346579 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 18.
Adding to 12220101211230 its reverse (3211210102221), we get a palindrome (15431311313451).
The spelling of 12220101211230 in words is "twelve trillion, two hundred twenty billion, one hundred one million, two hundred eleven thousand, two hundred thirty".
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