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2012021112012 = 223217976947419
BaseRepresentation
bin11101010001110101110…
…011011011110011001100
321010100101012200121112220
4131101311303123303030
5230431104401041022
64140150523055340
7265235521161612
oct35216563336314
97110335617486
102012021112012
117063255121aa
12285b39971550
1311796abab4c2
146d54d2056b2
153750d51d85c
hex1d475cdbccc

2012021112012 has 24 divisors (see below), whose sum is σ = 4696870516800. Its totient is φ = 670365905616.

The previous prime is 2012021111987. The next prime is 2012021112029. The reversal of 2012021112012 is 2102111202102.

It is a junction number, because it is equal to n+sod(n) for n = 2012021111982 and 2012021112000.

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, 38447562 + ... + 38499857.

It is an arithmetic number, because the mean of its divisors is an integer number (195702938200).

Almost surely, 22012021112012 is an apocalyptic number.

It is an amenable number.

2012021112012 is an abundant number, since it is smaller than the sum of its proper divisors (2684849404788).

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

2012021112012 is a wasteful number, since it uses less digits than its factorization.

2012021112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76949605 (or 76949603 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2012021112012 its reverse (2102111202102), we get a palindrome (4114132314114).

The spelling of 2012021112012 in words is "two trillion, twelve billion, twenty-one million, one hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 12 2179 4358 6537 8716 13074 26148 76947419 153894838 230842257 307789676 461684514 923369028 167668426001 335336852002 503005278003 670673704004 1006010556006 2012021112012