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101110212220 = 22531715947983
BaseRepresentation
bin101111000101010100…
…0110110011001111100
3100122222112200222002211
41132022220312121330
53124033203242340
6114241022430204
710206414423553
oct1361250663174
9318875628084
10101110212220
1139976095a66
1217719732364
1396c4827754
144c7269ad9a
15296b93b5ea
hex178aa3667c

101110212220 has 24 divisors (see below), whose sum is σ = 213001274304. Its totient is φ = 40316498496.

The previous prime is 101110212193. The next prime is 101110212233. The reversal of 101110212220 is 22212011101.

It is a self number, because there is not a number n which added to its sum of digits gives 101110212220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7967652 + ... + 7980331.

It is an arithmetic number, because the mean of its divisors is an integer number (8875053096).

Almost surely, 2101110212220 is an apocalyptic number.

101110212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101110212220 is an abundant number, since it is smaller than the sum of its proper divisors (111891062084).

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

101110212220 is a wasteful number, since it uses less digits than its factorization.

101110212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15948309 (or 15948307 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101110212220 its reverse (22212011101), we get a palindrome (123322223321).

The spelling of 101110212220 in words is "one hundred one billion, one hundred ten million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 317 634 1268 1585 3170 6340 15947983 31895966 63791932 79739915 159479830 318959660 5055510611 10111021222 20222042444 25277553055 50555106110 101110212220