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12110211210020 = 2257117863773513
BaseRepresentation
bin1011000000111010000011…
…0101100101101100100100
31120212201120102220122211212
42300032200311211230210
53041403203032210040
641431204302450552
72356635215566430
oct260164065455444
946781512818755
1012110211210020
113949a03574150
121437059293a58
1369acac89a321
142dc1ccc619c0
15160033838d65
hexb03a0d65b24

12110211210020 has 48 divisors (see below), whose sum is σ = 31706734808448. Its totient is φ = 3774611285760.

The previous prime is 12110211210017. The next prime is 12110211210037. The reversal of 12110211210020 is 2001211201121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12110211209977 and 12110211210004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3931885217 + ... + 3931888296.

It is an arithmetic number, because the mean of its divisors is an integer number (660556975176).

Almost surely, 212110211210020 is an apocalyptic number.

12110211210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110211210020 is an abundant number, since it is smaller than the sum of its proper divisors (19596523598428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12110211210020 is a wasteful number, since it uses less digits than its factorization.

12110211210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863773540 (or 7863773538 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12110211210020 its reverse (2001211201121), we get a palindrome (14111422411141).

The spelling of 12110211210020 in words is "twelve trillion, one hundred ten billion, two hundred eleven million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 7863773513 15727547026 31455094052 39318867565 55046414591 78637735130 86501508643 110092829182 157275470260 173003017286 220185658364 275232072955 346006034572 432507543215 550464145910 605510560501 865015086430 1100928291820 1211021121002 1730030172860 2422042242004 3027552802505 6055105605010 12110211210020