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12020211110 = 251969599091
BaseRepresentation
bin10110011000111010…
…11101110110100110
31011000201010222210002
423030131131312212
5144104133223420
65304430501302
7603605052155
oct131435356646
934021128702
1012020211110
115109106576
1223b5664832
1311973c006b
1482059d59c
154a5414075
hex2cc75dda6

12020211110 has 32 divisors (see below), whose sum is σ = 22780915200. Its totient is φ = 4553871840.

The previous prime is 12020211107. The next prime is 12020211169. The reversal of 12020211110 is 1111202021.

It is a junction number, because it is equal to n+sod(n) for n = 12020211091 and 12020211100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1317665 + ... + 1326755.

It is an arithmetic number, because the mean of its divisors is an integer number (711903600).

Almost surely, 212020211110 is an apocalyptic number.

12020211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020211110 is a deficient number, since it is larger than the sum of its proper divisors (10760704090).

12020211110 is a wasteful number, since it uses less digits than its factorization.

12020211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16076.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12020211110 its reverse (1111202021), we get a palindrome (13131413131).

The spelling of 12020211110 in words is "twelve billion, twenty million, two hundred eleven thousand, one hundred ten".

Divisors: 1 2 5 10 19 38 95 190 6959 9091 13918 18182 34795 45455 69590 90910 132221 172729 264442 345458 661105 863645 1322210 1727290 63264269 126528538 316321345 632642690 1202021111 2404042222 6010105555 12020211110