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120012222012 = 22310397097267
BaseRepresentation
bin110111111000101001…
…0010010111000111100
3102110202212011112221120
41233301102102320330
53431241112101022
6131044410230540
711446005025044
oct1576122227074
9373685145846
10120012222012
1146995852761
121b313a25450
13b4178a6427
145b46c08724
1531c60bbd5c
hex1bf1492e3c

120012222012 has 24 divisors (see below), whose sum is σ = 282747244416. Its totient is φ = 39615684528.

The previous prime is 120012221981. The next prime is 120012222017. The reversal of 120012222012 is 210222210021.

It is a junction number, because it is equal to n+sod(n) for n = 120012221982 and 120012222000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012222017) 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, 48547398 + ... + 48549869.

It is an arithmetic number, because the mean of its divisors is an integer number (11781135184).

Almost surely, 2120012222012 is an apocalyptic number.

120012222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120012222012 is an abundant number, since it is smaller than the sum of its proper divisors (162735022404).

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

120012222012 is a wasteful number, since it uses less digits than its factorization.

120012222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97097377 (or 97097375 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120012222012 its reverse (210222210021), we get a palindrome (330234432033).

The spelling of 120012222012 in words is "one hundred twenty billion, twelve million, two hundred twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 12 103 206 309 412 618 1236 97097267 194194534 291291801 388389068 582583602 1165167204 10001018501 20002037002 30003055503 40004074004 60006111006 120012222012