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20221102020 = 22357291660189
BaseRepresentation
bin10010110101010001…
…011000011111000100
31221012020120102012110
4102311101120133010
5312403100231040
613142304221020
71314045350130
oct226521303704
957166512173
1020221102020
118637315269
123b0400a770
131ba343cb32
14d9b7dc3c0
157d5392980
hex4b54587c4

20221102020 has 96 divisors (see below), whose sum is σ = 66938860800. Its totient is φ = 4462585344.

The previous prime is 20221102007. The next prime is 20221102039. The reversal of 20221102020 is 2020112202.

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 = 20221101987 and 20221102005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 817915 + ... + 842274.

It is an arithmetic number, because the mean of its divisors is an integer number (697279800).

Almost surely, 220221102020 is an apocalyptic number.

20221102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221102020 is an abundant number, since it is smaller than the sum of its proper divisors (46717758780).

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

20221102020 is a wasteful number, since it uses less digits than its factorization.

20221102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660237 (or 1660235 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20221102020 its reverse (2020112202), we get a palindrome (22241214222).

The spelling of 20221102020 in words is "twenty billion, two hundred twenty-one million, one hundred two thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 29 30 35 42 58 60 70 84 87 105 116 140 145 174 203 210 290 348 406 420 435 580 609 812 870 1015 1218 1740 2030 2436 3045 4060 6090 12180 1660189 3320378 4980567 6640756 8300945 9961134 11621323 16601890 19922268 23242646 24902835 33203780 34863969 46485292 48145481 49805670 58106615 69727938 96290962 99611340 116213230 139455876 144436443 174319845 192581924 232426460 240727405 288872886 337018367 348639690 481454810 577745772 674036734 697279380 722182215 962909620 1011055101 1348073468 1444364430 1685091835 2022110202 2888728860 3370183670 4044220404 5055275505 6740367340 10110551010 20221102020