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120102012220 = 2256005100611
BaseRepresentation
bin110111111011010100…
…0110100010100111100
3102111000010010100221211
41233312220310110330
53431432103342340
6131101334534204
711451145155061
oct1576650642474
9374003110854
10120102012220
1146a31500443
121b339b07364
13b430383a28
145b54adcc68
1531cde065ea
hex1bf6a3453c

120102012220 has 12 divisors (see below), whose sum is σ = 252214225704. Its totient is φ = 48040804880.

The previous prime is 120102012161. The next prime is 120102012269. The reversal of 120102012220 is 22210201021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 120102012220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3002550286 + ... + 3002550325.

It is an arithmetic number, because the mean of its divisors is an integer number (21017852142).

Almost surely, 2120102012220 is an apocalyptic number.

120102012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120102012220 is an abundant number, since it is smaller than the sum of its proper divisors (132112213484).

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

120102012220 is a wasteful number, since it uses less digits than its factorization.

120102012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005100620 (or 6005100618 counting only the distinct ones).

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

Adding to 120102012220 its reverse (22210201021), we get a palindrome (142312213241).

The spelling of 120102012220 in words is "one hundred twenty billion, one hundred two million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6005100611 12010201222 24020402444 30025503055 60051006110 120102012220