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12020020120000 = 26542113074639
BaseRepresentation
bin1010111011101010000100…
…0001111000100111000000
31120120002202212110120111101
42232322201001320213000
53033414000122320000
641321530534424144
72350263206145214
oct256724101704700
946502685416441
1012020020120000
113914730aa6322
121421688502054
136926382c0439
142d7ab4820944
1515ca05812e6a
hexaeea10789c0

12020020120000 has 280 divisors, whose sum is σ = 30051026593280. Its totient is φ = 4768606080000.

The previous prime is 12020020119949. The next prime is 12020020120021. The reversal of 12020020120000 is 2102002021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2591077681 + ... + 2591082319.

It is an arithmetic number, because the mean of its divisors is an integer number (107325094976).

Almost surely, 212020020120000 is an apocalyptic number.

12020020120000 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 12020020120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15025513296640).

12020020120000 is an abundant number, since it is smaller than the sum of its proper divisors (18031006473280).

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

12020020120000 is an equidigital number, since it uses as much as digits as its factorization.

12020020120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189 (or 5164 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12020020120000 its reverse (2102002021), we get a palindrome (12022122122021).

The spelling of 12020020120000 in words is "twelve trillion, twenty billion, twenty million, one hundred twenty thousand".