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2222000220 = 22351119374789
BaseRepresentation
bin1000010001110001…
…0000100001011100
312201212002022021110
42010130100201130
514022313001340
61004253102020
7106030455516
oct20434204134
95655068243
102222000220
11a40296720
12520187910
1329546533b
14171166bb6
15d0115680
hex8471085c

2222000220 has 192 divisors, whose sum is σ = 7339046400. Its totient is φ = 496419840.

The previous prime is 2222000203. The next prime is 2222000267. The reversal of 2222000220 is 220002222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2222000196 and 2222000205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 461586 + ... + 466374.

It is an arithmetic number, because the mean of its divisors is an integer number (38224200).

Almost surely, 22222000220 is an apocalyptic number.

2222000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222000220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3669523200).

2222000220 is an abundant number, since it is smaller than the sum of its proper divisors (5117046180).

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

2222000220 is a wasteful number, since it uses less digits than its factorization.

2222000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4868 (or 4866 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2222000220 is about 47138.0973311397. The cubic root of 2222000220 is about 1304.9124234767.

Adding to 2222000220 its reverse (220002222), we get a palindrome (2442002442).

It can be divided in two parts, 2 and 222000220, that added together give a palindrome (222000222).

The spelling of 2222000220 in words is "two billion, two hundred twenty-two million, two hundred twenty", and thus it is an aban number.