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20122102112122 = 279127355076659
BaseRepresentation
bin1001001001101000010101…
…01111111001111101111010
32122020122122220010110212201
410210310022233321331322
510114140031120041442
6110443544402100414
74144526306606023
oct444641257717572
978218586113781
1020122102112122
1164588100730aa
12230b96b34a70a
13b2c676b4841a
144d7cb483dc4a
1524d64e66e7b7
hex124d0abf9f7a

20122102112122 has 8 divisors (see below), whose sum is σ = 30565218398400. Its totient is φ = 9933695979324.

The previous prime is 20122102112069. The next prime is 20122102112173. The reversal of 20122102112122 is 22121120122102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20122102112122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63677538172 + ... + 63677538487.

It is an arithmetic number, because the mean of its divisors is an integer number (3820652299800).

Almost surely, 220122102112122 is an apocalyptic number.

20122102112122 is a deficient number, since it is larger than the sum of its proper divisors (10443116286278).

20122102112122 is a wasteful number, since it uses less digits than its factorization.

20122102112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127355076740.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20122102112122 its reverse (22121120122102), we get a palindrome (42243222234224).

The spelling of 20122102112122 in words is "twenty trillion, one hundred twenty-two billion, one hundred two million, one hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 79 158 127355076659 254710153318 10061051056061 20122102112122