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120012120212020 = 2251719417313745307
BaseRepresentation
bin11011010010011001111111…
…110010110100001000110100
3120201221001021000002121011221
4123102121333302310020310
5111212234310233241040
61103124450143040124
734164406134244231
oct3322317762641064
9521831230077157
10120012120212020
113526a944171963
12115631a02a0044
1351c712c460a6a
14218c890a20788
15dd1bcd71e74a
hex6d267fcb4234

120012120212020 has 384 divisors, whose sum is σ = 293823670371840. Its totient is φ = 40885526200320.

The previous prime is 120012120211931. The next prime is 120012120212057. The reversal of 120012120212020 is 20212021210021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120012120211985 and 120012120212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2648842207 + ... + 2648887513.

It is an arithmetic number, because the mean of its divisors is an integer number (765165808260).

Almost surely, 2120012120212020 is an apocalyptic number.

120012120212020 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 120012120212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146911835185920).

120012120212020 is an abundant number, since it is smaller than the sum of its proper divisors (173811550159820).

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

120012120212020 is a wasteful number, since it uses less digits than its factorization.

120012120212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45603 (or 45601 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120012120212020 its reverse (20212021210021), we get a palindrome (140224141422041).

The spelling of 120012120212020 in words is "one hundred twenty trillion, twelve billion, one hundred twenty million, two hundred twelve thousand, twenty".