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20122012111001 = 311514298656721
BaseRepresentation
bin1001001001101000001010…
…11000100101000010011001
32122020122102121202221112212
410210310011120211002121
510114134340100023001
6110443531425044505
74144524134610053
oct444640530450231
978218377687485
1020122012111001
116458774290a09
12230b945186735
13b2c6612c5b18
144d7ca68d28d3
1524d6467e27bb
hex124d05625099

20122012111001 has 8 divisors (see below), whose sum is σ = 20908666295808. Its totient is φ = 19343955240000.

The previous prime is 20122012110997. The next prime is 20122012111013. The reversal of 20122012111001 is 10011121022102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20122012111001 - 22 = 20122012110997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122012111021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2149323680 + ... + 2149333041.

It is an arithmetic number, because the mean of its divisors is an integer number (2613583286976).

Almost surely, 220122012111001 is an apocalyptic number.

It is an amenable number.

20122012111001 is a deficient number, since it is larger than the sum of its proper divisors (786654184807).

20122012111001 is a wasteful number, since it uses less digits than its factorization.

20122012111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298656903.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20122012111001 its reverse (10011121022102), we get a palindrome (30133133133103).

The spelling of 20122012111001 in words is "twenty trillion, one hundred twenty-two billion, twelve million, one hundred eleven thousand, one".

Divisors: 1 31 151 4681 4298656721 133258358351 649097164871 20122012111001