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1213200130012 = 221359395436809
BaseRepresentation
bin10001101001111000010…
…111001101111111011100
311021222111000002012012121
4101221320113031333130
5124334113213130022
62325200401112324
7153436141646053
oct21517027157734
94258430065177
101213200130012
11428573933152
121771623286a4
138a53428ac20
1442a0d6ab39a
15218589c02c7
hex11a785cdfdc

1213200130012 has 24 divisors (see below), whose sum is σ = 2325168442800. Its totient is φ = 550448036736.

The previous prime is 1213200130007. The next prime is 1213200130057. The reversal of 1213200130012 is 2100310023121.

It is a super-2 number, since 2×12132001300122 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 197715337 + ... + 197721472.

It is an arithmetic number, because the mean of its divisors is an integer number (96882018450).

Almost surely, 21213200130012 is an apocalyptic number.

It is an amenable number.

1213200130012 is a deficient number, since it is larger than the sum of its proper divisors (1111968312788).

1213200130012 is a wasteful number, since it uses less digits than its factorization.

1213200130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395436885 (or 395436883 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1213200130012 its reverse (2100310023121), we get a palindrome (3313510153133).

The spelling of 1213200130012 in words is "one trillion, two hundred thirteen billion, two hundred million, one hundred thirty thousand, twelve".

Divisors: 1 2 4 13 26 52 59 118 236 767 1534 3068 395436809 790873618 1581747236 5140678517 10281357034 20562714068 23330771731 46661543462 93323086924 303300032503 606600065006 1213200130012