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2011212121030 = 25753542105693
BaseRepresentation
bin11101010001000101100…
…101011000001111000110
321010021021211102121112221
4131101011211120033012
5230422430300333110
64135534343402554
7265206465650410
oct35210545301706
97107254377487
102011212121030
11705a4a8a0312
12285952a5345a
1311786c3cb108
146d4b39b99b0
15374b24bc7da
hex1d4459583c6

2011212121030 has 32 divisors (see below), whose sum is σ = 4215413876544. Its totient is φ = 676547903616.

The previous prime is 2011212121019. The next prime is 2011212121031. The reversal of 2011212121030 is 301212121102.

It is a junction number, because it is equal to n+sod(n) for n = 2011212120995 and 2011212121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011212121031) 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, 271049137 + ... + 271056556.

It is an arithmetic number, because the mean of its divisors is an integer number (131731683642).

Almost surely, 22011212121030 is an apocalyptic number.

2011212121030 is an abundant number, since it is smaller than the sum of its proper divisors (2204201755514).

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

2011212121030 is a wasteful number, since it uses less digits than its factorization.

2011212121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542105760.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2011212121030 its reverse (301212121102), we get a palindrome (2312424242132).

The spelling of 2011212121030 in words is "two trillion, eleven billion, two hundred twelve million, one hundred twenty-one thousand, thirty".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 371 530 742 1855 3710 542105693 1084211386 2710528465 3794739851 5421056930 7589479702 18973699255 28731601729 37947398510 57463203458 143658008645 201121212103 287316017290 402242424206 1005606060515 2011212121030