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22211120228 = 221117223133157
BaseRepresentation
bin10100101011111000…
…101100110001100100
32010022221010210222112
4110223320230301210
5330442021321403
614111553220152
71414261256363
oct245370546144
963287123875
1022211120228
119468664410
12437a561658
13212c8009bb
141109c197da
1589ee329d8
hex52be2cc64

22211120228 has 48 divisors (see below), whose sum is σ = 45099016704. Its totient is φ = 9459402240.

The previous prime is 22211120221. The next prime is 22211120291. The reversal of 22211120228 is 82202111222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22211120221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 100226 + ... + 233382.

It is an arithmetic number, because the mean of its divisors is an integer number (939562848).

Almost surely, 222211120228 is an apocalyptic number.

It is an amenable number.

22211120228 is an abundant number, since it is smaller than the sum of its proper divisors (22887896476).

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

22211120228 is a wasteful number, since it uses less digits than its factorization.

22211120228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133412 (or 133410 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The spelling of 22211120228 in words is "twenty-two billion, two hundred eleven million, one hundred twenty thousand, two hundred twenty-eight".

Divisors: 1 2 4 11 17 22 34 44 68 187 223 374 446 748 892 2453 3791 4906 7582 9812 15164 41701 83402 133157 166804 266314 532628 1464727 2263669 2929454 4527338 5858908 9054676 24900359 29694011 49800718 59388022 99601436 118776044 326634121 504798187 653268242 1009596374 1306536484 2019192748 5552780057 11105560114 22211120228