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2222202012 = 223185183501
BaseRepresentation
bin1000010001110100…
…0001110010011100
312201212110120002020
42010131001302130
514022340431022
61004301300140
7106032256032
oct20435016234
95655416066
102222202012
11a40414298
12520264650
13295506144
141711ba552
15d015535c
hex84741c9c

2222202012 has 12 divisors (see below), whose sum is σ = 5185138056. Its totient is φ = 740734000.

The previous prime is 2222202011. The next prime is 2222202029. The reversal of 2222202012 is 2102022222.

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

It is a junction number, because it is equal to n+sod(n) for n = 2222201982 and 2222202000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222202011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92591739 + ... + 92591762.

It is an arithmetic number, because the mean of its divisors is an integer number (432094838).

Almost surely, 22222202012 is an apocalyptic number.

It is an amenable number.

2222202012 is an abundant number, since it is smaller than the sum of its proper divisors (2962936044).

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

2222202012 is a wasteful number, since it uses less digits than its factorization.

2222202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185183508 (or 185183506 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2222202012 is about 47140.2377168380. The cubic root of 2222202012 is about 1304.9519243604.

Adding to 2222202012 its reverse (2102022222), we get a palindrome (4324224234).

The spelling of 2222202012 in words is "two billion, two hundred twenty-two million, two hundred two thousand, twelve".

Divisors: 1 2 3 4 6 12 185183501 370367002 555550503 740734004 1111101006 2222202012