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120020012200221 = 3759712713591757
BaseRepresentation
bin11011010010100001010110…
…001100010111000100011101
3120201221210122000021010202020
4123102201112030113010131
5111212401441110401341
61103132233223450353
734165105534113210
oct3322412614270435
9521853560233666
10120020012200221
1135273223a76461
12115648232b69b9
1351c7ab94b6773
14218cddcc0d777
15dd1ee14d1566
hex6d285631711d

120020012200221 has 32 divisors (see below), whose sum is σ = 186013537966080. Its totient is φ = 67410977866176.

The previous prime is 120020012200219. The next prime is 120020012200241. The reversal of 120020012200221 is 122002210020021.

It is not a de Polignac number, because 120020012200221 - 21 = 120020012200219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120020012200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020012200241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2034475 + ... + 15626231.

It is an arithmetic number, because the mean of its divisors is an integer number (5812923061440).

Almost surely, 2120020012200221 is an apocalyptic number.

It is an amenable number.

120020012200221 is a deficient number, since it is larger than the sum of its proper divisors (65993525765859).

120020012200221 is a wasteful number, since it uses less digits than its factorization.

120020012200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13598953.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120020012200221 its reverse (122002210020021), we get a palindrome (242022222220242).

The spelling of 120020012200221 in words is "one hundred twenty trillion, twenty billion, twelve million, two hundred thousand, two hundred twenty-one".

Divisors: 1 3 7 21 59 177 413 1239 7127 21381 49889 149667 420493 1261479 2943451 8830353 13591757 40775271 95142299 285426897 801913663 2405740989 5613395641 16840186923 96868452139 290605356417 678079164973 2034237494919 5715238676201 17145716028603 40006670733407 120020012200221