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12020102021120 = 2145198986771
BaseRepresentation
bin1010111011101010010111…
…1010010100000000000000
31120120002222120120120201012
42232322211322110000000
53033414132104133440
641321543022100052
72350265222250044
oct256724572240000
946502876516635
1012020102021120
1139147732558a6
1214216aba1a628
1369264c267c3b
142d7ac1660024
1515ca0cadee65
hexaeea5e94000

12020102021120 has 240 divisors, whose sum is σ = 30707187739200. Its totient is φ = 4503754506240.

The previous prime is 12020102021051. The next prime is 12020102021131. The reversal of 12020102021120 is 2112020102021.

It is a junction number, because it is equal to n+sod(n) for n = 12020102021095 and 12020102021104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138483335 + ... + 138570105.

It is an arithmetic number, because the mean of its divisors is an integer number (127946615580).

Almost surely, 212020102021120 is an apocalyptic number.

12020102021120 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 12020102021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15353593869600).

12020102021120 is an abundant number, since it is smaller than the sum of its proper divisors (18687085718080).

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

12020102021120 is an frugal number, since it uses more digits than its factorization.

12020102021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86912 (or 86886 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12020102021120 its reverse (2112020102021), we get a palindrome (14132122123141).

The spelling of 12020102021120 in words is "twelve trillion, twenty billion, one hundred two million, twenty-one thousand, one hundred twenty".