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12020101200120 = 23351329493353861
BaseRepresentation
bin1010111011101010010111…
…0111001011100011111000
31120120002222112000212111210
42232322211313023203320
53033414131401400440
641321542552323120
72350265212260336
oct256724567134370
946502875025453
1012020101200120
113914772844a92
1214216ab6a34a0
1369264c03b340
142d7ac14c8b56
1515ca0c9cba80
hexaeea5dcb8f8

12020101200120 has 256 divisors, whose sum is σ = 40182172329600. Its totient is φ = 2856134615040.

The previous prime is 12020101200061. The next prime is 12020101200139. The reversal of 12020101200120 is 2100210102021.

It is a super-2 number, since 2×120201012001202 (a number of 27 digits) contains 22 as substring.

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 = 12020101200096 and 12020101200105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223141990 + ... + 223195850.

Almost surely, 212020101200120 is an apocalyptic number.

12020101200120 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 12020101200120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20091086164800).

12020101200120 is an abundant number, since it is smaller than the sum of its proper divisors (28162071129480).

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

12020101200120 is a wasteful number, since it uses less digits than its factorization.

12020101200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58850 (or 58846 counting only the distinct ones).

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

Adding to 12020101200120 its reverse (2100210102021), we get a palindrome (14120311302141).

The spelling of 12020101200120 in words is "twelve trillion, twenty billion, one hundred one million, two hundred thousand, one hundred twenty".