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11201112122120 = 2351716472223709
BaseRepresentation
bin1010001011111111011001…
…0011110010001100001000
31110122211000202121000112222
42202333312103302030020
52432004334200401440
635453415254153212
72234153000052014
oct242776623621410
943584022530488
1011201112122120
1136294018649a8
12130aa25952808
1363334cc7964b
142aa1cb22d544
151465775ab2b5
hexa2ff64f2308

11201112122120 has 32 divisors (see below), whose sum is σ = 26685002410200. Its totient is φ = 4216889269248.

The previous prime is 11201112122099. The next prime is 11201112122129. The reversal of 11201112122120 is 2122121110211.

11201112122120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11113115645956 + 87996476164 = 3333634^2 + 296642^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (11201112122129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8236111175 + ... + 8236112534.

Almost surely, 211201112122120 is an apocalyptic number.

11201112122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11201112122120 is an abundant number, since it is smaller than the sum of its proper divisors (15483890288080).

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

11201112122120 is a wasteful number, since it uses less digits than its factorization.

11201112122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16472223737 (or 16472223733 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11201112122120 its reverse (2122121110211), we get a palindrome (13323233232331).

The spelling of 11201112122120 in words is "eleven trillion, two hundred one billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 16472223709 32944447418 65888894836 82361118545 131777789672 164722237090 280027803053 329444474180 560055606106 658888948360 1120111212212 1400139015265 2240222424424 2800278030530 5600556061060 11201112122120