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12020211030000 = 243547923921221
BaseRepresentation
bin1010111011101010110001…
…1010001001011111110000
31120120010021011200210210010
42232322230122021133300
53033414343010430000
641322001514334520
72350301014643145
oct256725432113760
946503234623703
1012020211030000
11391481983a888
12142172042a440
13692668a14134
142d7ad1d183cc
1515ca17473d50
hexaeeac6897f0

12020211030000 has 400 divisors, whose sum is σ = 39460288665600. Its totient is φ = 3151424640000.

The previous prime is 12020211029999. The next prime is 12020211030043. The reversal of 12020211030000 is 3011202021.

It is a tau number, because it is divible by the number of its divisors (400).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 566419390 + ... + 566440610.

It is an arithmetic number, because the mean of its divisors is an integer number (98650721664).

Almost surely, 212020211030000 is an apocalyptic number.

12020211030000 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 12020211030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19730144332800).

12020211030000 is an abundant number, since it is smaller than the sum of its proper divisors (27440077635600).

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

12020211030000 is a wasteful number, since it uses less digits than its factorization.

12020211030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21570 (or 21549 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12020211030000 its reverse (3011202021), we get a palindrome (12023222232021).

The spelling of 12020211030000 in words is "twelve trillion, twenty billion, two hundred eleven million, thirty thousand".