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1200211200110 = 251317543081991
BaseRepresentation
bin10001011101110010001…
…010011000100001101110
311020201221210010012001202
4101131302022120201232
5124131013031400420
62315211443205502
7152466231605546
oct21356212304156
94221853105052
101200211200110
11423008a2993a
12174738376892
1389244293ba0
144213a5c4326
1521348508575
hex1177229886e

1200211200110 has 32 divisors (see below), whose sum is σ = 2463419915712. Its totient is φ = 417086968320.

The previous prime is 1200211199981. The next prime is 1200211200113. The reversal of 1200211200110 is 110021120021.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1200211200091 and 1200211200100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200211200113) by changing a digit.

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, 271538786 + ... + 271543205.

It is an arithmetic number, because the mean of its divisors is an integer number (76981872366).

Almost surely, 21200211200110 is an apocalyptic number.

1200211200110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200211200110 is an abundant number, since it is smaller than the sum of its proper divisors (1263208715602).

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

1200211200110 is a wasteful number, since it uses less digits than its factorization.

1200211200110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543082028.

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

Adding to 1200211200110 its reverse (110021120021), we get a palindrome (1310232320131).

The spelling of 1200211200110 in words is "one trillion, two hundred billion, two hundred eleven million, two hundred thousand, one hundred ten".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 2210 543081991 1086163982 2715409955 5430819910 7060065883 9232393847 14120131766 18464787694 35300329415 46161969235 70600658830 92323938470 120021120011 240042240022 600105600055 1200211200110