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2012202012220 = 225140877142053
BaseRepresentation
bin11101010010000000100…
…101100000111000111100
321010100211211002021222121
4131102000211200320330
5230431442203342340
64140220504252324
7265243145616511
oct35220045407074
97110754067877
102012202012220
1170640863a204
12285b8a4710a4
1311799950904a
146d569255308
153751e35394a
hex1d480960e3c

2012202012220 has 24 divisors (see below), whose sum is σ = 4225924783584. Its totient is φ = 804823555776.

The previous prime is 2012202012217. The next prime is 2012202012287. The reversal of 2012202012220 is 222102022102.

It is a junction number, because it is equal to n+sod(n) for n = 2012202012194 and 2012202012203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3289287 + ... + 3852766.

It is an arithmetic number, because the mean of its divisors is an integer number (176080199316).

Almost surely, 22012202012220 is an apocalyptic number.

2012202012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012202012220 is an abundant number, since it is smaller than the sum of its proper divisors (2213722771364).

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

2012202012220 is a wasteful number, since it uses less digits than its factorization.

2012202012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7156149 (or 7156147 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2012202012220 its reverse (222102022102), we get a palindrome (2234304034322).

The spelling of 2012202012220 in words is "two trillion, twelve billion, two hundred two million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 14087 28174 56348 70435 140870 281740 7142053 14284106 28568212 35710265 71420530 142841060 100610100611 201220201222 402440402444 503050503055 1006101006110 2012202012220