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22102132220 = 2257775920347
BaseRepresentation
bin10100100101011000…
…111100010111111100
32010001100001122112122
4110211120330113330
5330231121212340
614053101222112
71411466011160
oct244530742774
963040048478
1022102132220
119412094083
124349b61938
13211306115c
1410d9568ca0
158955a4db5
hex52563c5fc

22102132220 has 48 divisors (see below), whose sum is σ = 53054561280. Its totient is φ = 7576524864.

The previous prime is 22102132183. The next prime is 22102132231. The reversal of 22102132220 is 2223120122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1076087 + ... + 1096433.

It is an arithmetic number, because the mean of its divisors is an integer number (1105303360).

Almost surely, 222102132220 is an apocalyptic number.

22102132220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22102132220 is an abundant number, since it is smaller than the sum of its proper divisors (30952429060).

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

22102132220 is a wasteful number, since it uses less digits than its factorization.

22102132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28122 (or 28120 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22102132220 its reverse (2223120122), we get a palindrome (24325252342).

The spelling of 22102132220 in words is "twenty-two billion, one hundred two million, one hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 7759 15518 20347 31036 38795 40694 54313 77590 81388 101735 108626 142429 155180 203470 217252 271565 284858 406940 543130 569716 712145 1086260 1424290 2848580 157872373 315744746 631489492 789361865 1105106611 1578723730 2210213222 3157447460 4420426444 5525533055 11051066110 22102132220