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120102001212 = 22310008500101
BaseRepresentation
bin110111111011010100…
…0110001101000111100
3102111000010002210212010
41233312220301220330
53431432103014322
6131101334411220
711451145111014
oct1576650615074
9374003083763
10120102001212
1146a314a3146
121b339b00b10
13b43037ba0b
145b54ad8c44
1531cde0320c
hex1bf6a31a3c

120102001212 has 12 divisors (see below), whose sum is σ = 280238002856. Its totient is φ = 40034000400.

The previous prime is 120102001211. The next prime is 120102001267. The reversal of 120102001212 is 212100201021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 10008500101 = 120102001212 / (1 + 2 + 0 + 1 + 0 + 2 + 0 + 0 + 1 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102001211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5004250039 + ... + 5004250062.

Almost surely, 2120102001212 is an apocalyptic number.

120102001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120102001212 is an abundant number, since it is smaller than the sum of its proper divisors (160136001644).

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

120102001212 is a wasteful number, since it uses less digits than its factorization.

120102001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008500108 (or 10008500106 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120102001212 its reverse (212100201021), we get a palindrome (332202202233).

The spelling of 120102001212 in words is "one hundred twenty billion, one hundred two million, one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 10008500101 20017000202 30025500303 40034000404 60051000606 120102001212