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2001112012010 = 251231162559871
BaseRepresentation
bin11101000111101011100…
…100100001010011101010
321002022012221021220200002
4131013223210201103222
5230241234133341020
64131144223143002
7264401264310416
oct35075344412352
97068187256602
102001112012010
1170173761a981
122839b4444a62
1311691ca5c647
146cbd6437d46
15370c0937975
hex1d1eb9214ea

2001112012010 has 16 divisors (see below), whose sum is σ = 3604927721472. Its totient is φ = 799794560400.

The previous prime is 2001112011967. The next prime is 2001112012013. The reversal of 2001112012010 is 102102111002.

It is a super-2 number, since 2×20011120120102 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2001112011982 and 2001112012000.

It is not an unprimeable number, because it can be changed into a prime (2001112012013) 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, 81267626 + ... + 81292245.

It is an arithmetic number, because the mean of its divisors is an integer number (225307982592).

Almost surely, 22001112012010 is an apocalyptic number.

2001112012010 is a deficient number, since it is larger than the sum of its proper divisors (1603815709462).

2001112012010 is a wasteful number, since it uses less digits than its factorization.

2001112012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162561109.

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

Adding to 2001112012010 its reverse (102102111002), we get a palindrome (2103214123012).

The spelling of 2001112012010 in words is "two trillion, one billion, one hundred twelve million, twelve thousand, ten".

Divisors: 1 2 5 10 1231 2462 6155 12310 162559871 325119742 812799355 1625598710 200111201201 400222402402 1000556006005 2001112012010