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1201220001068 = 221009538755249
BaseRepresentation
bin10001011110101110010…
…010101001110100101100
311020211120002100120211012
4101132232102221310230
5124140044310013233
62315455521244352
7152533231353323
oct21365622516454
94224502316735
101201220001068
11423486413a3a
1217497a1936b8
1389375292c29
14421d45830ba
15213a6d77548
hex117ae4a9d2c

1201220001068 has 24 divisors (see below), whose sum is σ = 2104647090000. Its totient is φ = 599892507648.

The previous prime is 1201220001067. The next prime is 1201220001089. The reversal of 1201220001068 is 8601000221021.

It is a super-2 number, since 2×12012200010682 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201220001067) 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, 21714308 + ... + 21769556.

It is an arithmetic number, because the mean of its divisors is an integer number (87693628750).

Almost surely, 21201220001068 is an apocalyptic number.

It is an amenable number.

1201220001068 is a deficient number, since it is larger than the sum of its proper divisors (903427088932).

1201220001068 is a wasteful number, since it uses less digits than its factorization.

1201220001068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61649 (or 61647 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1201220001068 its reverse (8601000221021), we get a palindrome (9802220222089).

The spelling of 1201220001068 in words is "one trillion, two hundred one billion, two hundred twenty million, one thousand, sixty-eight".

Divisors: 1 2 4 1009 2018 4036 5387 10774 21548 55249 110498 220996 5435483 10870966 21741932 55746241 111492482 222984964 297626363 595252726 1190505452 300305000267 600610000534 1201220001068