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101022012012 = 2238418501001
BaseRepresentation
bin101111000010101100…
…0011001001001101100
3100122202101201221011110
41132011120121021230
53123343113341022
6114224152152020
710204263635235
oct1360530311154
9318671657143
10101022012012
1139930323929
12176b4098610
1396ac485a8c
144c64a9c08c
152963d1800c
hex178561926c

101022012012 has 12 divisors (see below), whose sum is σ = 235718028056. Its totient is φ = 33674004000.

The previous prime is 101022012001. The next prime is 101022012037. The reversal of 101022012012 is 210210220101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8418501001 = 101022012012 / (1 + 0 + 1 + 0 + 2 + 2 + 0 + 1 + 2 + 0 + 1 + 2).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4209250489 + ... + 4209250512.

Almost surely, 2101022012012 is an apocalyptic number.

101022012012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101022012012 is an abundant number, since it is smaller than the sum of its proper divisors (134696016044).

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

101022012012 is a wasteful number, since it uses less digits than its factorization.

101022012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418501008 (or 8418501006 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101022012012 its reverse (210210220101), we get a palindrome (311232232113).

The spelling of 101022012012 in words is "one hundred one billion, twenty-two million, twelve thousand, twelve".

Divisors: 1 2 3 4 6 12 8418501001 16837002002 25255503003 33674004004 50511006006 101022012012