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120102201220 = 2256005110061
BaseRepresentation
bin110111111011010100…
…1100010011110000100
3102111000010110222012211
41233312221202132010
53431432130414340
6131101342553204
711451146603101
oct1576651423604
9374003428184
10120102201220
1146a3161a441
121b339b98804
13b43041ba71
145b54b4baa8
1531cde425ea
hex1bf6a62784

120102201220 has 12 divisors (see below), whose sum is σ = 252214622604. Its totient is φ = 48040880480.

The previous prime is 120102201217. The next prime is 120102201227. The reversal of 120102201220 is 22102201021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29331357696 + 90770843524 = 171264^2 + 301282^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120102201220.

It is not an unprimeable number, because it can be changed into a prime (120102201227) 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, 3002555011 + ... + 3002555050.

It is an arithmetic number, because the mean of its divisors is an integer number (21017885217).

Almost surely, 2120102201220 is an apocalyptic number.

120102201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120102201220 is an abundant number, since it is smaller than the sum of its proper divisors (132112421384).

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

120102201220 is a wasteful number, since it uses less digits than its factorization.

120102201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005110070 (or 6005110068 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120102201220 its reverse (22102201021), we get a palindrome (142204402241).

The spelling of 120102201220 in words is "one hundred twenty billion, one hundred two million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6005110061 12010220122 24020440244 30025550305 60051100610 120102201220