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22002100220 = 2251100105011
BaseRepresentation
bin10100011111011011…
…010110011111111100
32002210100211111102202
4110133123112133330
5330030014201340
614035125211032
71406142523532
oct243733263774
962710744382
1022002100220
119370680601
124320560a78
1320c8408c19
1410ca16a152
1588b8e5c15
hex51f6d67fc

22002100220 has 12 divisors (see below), whose sum is σ = 46204410504. Its totient is φ = 8800840080.

The previous prime is 22002100193. The next prime is 22002100229. The reversal of 22002100220 is 2200120022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002100229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550052486 + ... + 550052525.

It is an arithmetic number, because the mean of its divisors is an integer number (3850367542).

Almost surely, 222002100220 is an apocalyptic number.

22002100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002100220 is an abundant number, since it is smaller than the sum of its proper divisors (24202310284).

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

22002100220 is a wasteful number, since it uses less digits than its factorization.

22002100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100105020 (or 1100105018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22002100220 its reverse (2200120022), we get a palindrome (24202220242).

The spelling of 22002100220 in words is "twenty-two billion, two million, one hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1100105011 2200210022 4400420044 5500525055 11001050110 22002100220