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12010010012220 = 22351110122323623
BaseRepresentation
bin1010111011000100110001…
…1000010110101000111100
31120112010221020200102002210
42232301030120112220330
53033233000030342340
641313153351220420
72346460146504423
oct256611430265074
946463836612083
1012010010012220
113910464608180
12141b754077710
136917014a433c
142d74051ca2ba
1515c61bb0a180
hexaec4c616a3c

12010010012220 has 288 divisors, whose sum is σ = 37225493512704. Its totient is φ = 2868971712000.

The previous prime is 12010010012177. The next prime is 12010010012233. The reversal of 12010010012220 is 2221001001021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12010010012196 and 12010010012205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3314933329 + ... + 3314936951.

It is an arithmetic number, because the mean of its divisors is an integer number (129255185808).

Almost surely, 212010010012220 is an apocalyptic number.

12010010012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12010010012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18612746756352).

12010010012220 is an abundant number, since it is smaller than the sum of its proper divisors (25215483500484).

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

12010010012220 is a wasteful number, since it uses less digits than its factorization.

12010010012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193 (or 3968 counting only the distinct ones).

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

Adding to 12010010012220 its reverse (2221001001021), we get a palindrome (14231011013241).

The spelling of 12010010012220 in words is "twelve trillion, ten billion, ten million, twelve thousand, two hundred twenty".