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212001020211020 = 225389128813211543
BaseRepresentation
bin110000001101000001010101…
…100000000110111101001100
31000210122002200121102020210012
4300031001111200012331030
5210241411042133223040
62030515531342132352
762440365625066265
oct6015012540067514
91023562617366705
10212001020211020
1161606145065857
121b93b2748810b8
13913a7c2144111
143a4cc92cd196c
151979976834865
hexc0d055806f4c

212001020211020 has 48 divisors (see below), whose sum is σ = 446352196006080. Its totient is φ = 84581355714816.

The previous prime is 212001020211007. The next prime is 212001020211041. The reversal of 212001020211020 is 20112020100212.

It is a junction number, because it is equal to n+sod(n) for n = 212001020210986 and 212001020211004.

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 15 ways as a sum of consecutive naturals, for example, 1002059369 + ... + 1002270911.

It is an arithmetic number, because the mean of its divisors is an integer number (9299004083460).

Almost surely, 2212001020211020 is an apocalyptic number.

212001020211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212001020211020 is an abundant number, since it is smaller than the sum of its proper divisors (234351175795060).

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

212001020211020 is a wasteful number, since it uses less digits than its factorization.

212001020211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340754 (or 340752 counting only the distinct ones).

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

Adding to 212001020211020 its reverse (20112020100212), we get a palindrome (232113040311232).

The spelling of 212001020211020 in words is "two hundred twelve trillion, one billion, twenty million, two hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 389 778 1556 1945 3890 7780 128813 211543 257626 423086 515252 644065 846172 1057715 1288130 2115430 2576260 4230860 50108257 82290227 100216514 164580454 200433028 250541285 329160908 411451135 501082570 822902270 1002165140 1645804540 27249488459 54498976918 108997953836 136247442295 272494884590 544989769180 10600051010551 21200102021102 42400204042204 53000255052755 106000510105510 212001020211020