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2001111110212 = 221736947416263
BaseRepresentation
bin11101000111101011100…
…001000101001001000100
321002022012212121002122011
4131013223201011021010
5230241233421011322
64131144151544004
7264401253533314
oct35075341051104
97068185532564
102001111110212
11701737064395
122839b408b004
1311691c805036
146cbd6281444
15370c080a677
hex1d1eb845244

2001111110212 has 24 divisors (see below), whose sum is σ = 3522702367296. Its totient is φ = 994626413088.

The previous prime is 2001111110203. The next prime is 2001111110227. The reversal of 2001111110212 is 2120111111002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001111110192 and 2001111110201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4599193 + ... + 5015455.

It is an arithmetic number, because the mean of its divisors is an integer number (146779265304).

Almost surely, 22001111110212 is an apocalyptic number.

It is an amenable number.

2001111110212 is a deficient number, since it is larger than the sum of its proper divisors (1521591257084).

2001111110212 is a wasteful number, since it uses less digits than its factorization.

2001111110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423387 (or 423385 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2001111110212 its reverse (2120111111002), we get a palindrome (4121222221214).

The spelling of 2001111110212 in words is "two trillion, one billion, one hundred eleven million, one hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 173 346 692 6947 13894 27788 416263 832526 1201831 1665052 2403662 4807324 72013499 144026998 288053996 2891779061 5783558122 11567116244 500277777553 1000555555106 2001111110212