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120012201 = 32371033499
BaseRepresentation
bin1110010011100…
…11110110101001
322100211020210100
413021303312221
5221210342301
615524140013
72655041541
oct711636651
9270736710
10120012201
116181aa41
1234237609
131bb2c64a
1411d20321
15a809286
hex7273da9

120012201 has 24 divisors (see below), whose sum is σ = 179816000. Its totient is φ = 77067936.

The previous prime is 120012187. The next prime is 120012239. The reversal of 120012201 is 102210021.

It is not a de Polignac number, because 120012201 - 25 = 120012169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120012241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32550 + ... + 36048.

Almost surely, 2120012201 is an apocalyptic number.

It is an amenable number.

120012201 is a deficient number, since it is larger than the sum of its proper divisors (59803799).

120012201 is a wasteful number, since it uses less digits than its factorization.

120012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3645 (or 3642 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 120012201 is about 10955.0080328588. The cubic root of 120012201 is about 493.2591311071.

Adding to 120012201 its reverse (102210021), we get a palindrome (222222222).

The spelling of 120012201 in words is "one hundred twenty million, twelve thousand, two hundred one".

Divisors: 1 3 9 37 103 111 309 333 927 3499 3811 10497 11433 31491 34299 129463 360397 388389 1081191 1165167 3243573 13334689 40004067 120012201