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22112102020 = 22523199724071
BaseRepresentation
bin10100100101111110…
…111110011010000100
32010002000211011112111
4110211332332122010
5330241144231040
614054055030404
71411646523511
oct244576763204
963060734474
1022112102020
119417783588
12435136b404
132115142048
1410daa02308
158963c3dea
hex525fbe684

22112102020 has 48 divisors (see below), whose sum is σ = 48480622848. Its totient is φ = 8455694720.

The previous prime is 22112102009. The next prime is 22112102059. The reversal of 22112102020 is 2020121122.

It is a happy 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, 906585 + ... + 930655.

It is an arithmetic number, because the mean of its divisors is an integer number (1010012976).

Almost surely, 222112102020 is an apocalyptic number.

22112102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112102020 is an abundant number, since it is smaller than the sum of its proper divisors (26368520828).

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

22112102020 is a wasteful number, since it uses less digits than its factorization.

22112102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26100 (or 26098 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22112102020 its reverse (2020121122), we get a palindrome (24132223142).

The spelling of 22112102020 in words is "twenty-two billion, one hundred twelve million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 1997 3994 7988 9985 19970 24071 39940 45931 48142 91862 96284 120355 183724 229655 240710 459310 481420 553633 918620 1107266 2214532 2768165 5536330 11072660 48069787 96139574 192279148 240348935 480697870 961395740 1105605101 2211210202 4422420404 5528025505 11056051010 22112102020