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10021201110 = 2325457243647
BaseRepresentation
bin10010101010100111…
…10110010011010110
3221212101122202120200
421111103312103112
5131010411413420
64334221041330
7503222542524
oct112523662326
927771582520
1010021201110
114282785798
121b380b6246
13c392014cb
146b0cc1314
153d9b99b90
hex2554f64d6

10021201110 has 48 divisors (see below), whose sum is σ = 26112243456. Its totient is φ = 2666461824.

The previous prime is 10021201097. The next prime is 10021201117. The reversal of 10021201110 is 1110212001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10021201092 and 10021201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021201117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80694 + ... + 162953.

It is an arithmetic number, because the mean of its divisors is an integer number (544005072).

Almost surely, 210021201110 is an apocalyptic number.

10021201110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10021201110 is an abundant number, since it is smaller than the sum of its proper divisors (16091042346).

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

10021201110 is a wasteful number, since it uses less digits than its factorization.

10021201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244117 (or 244114 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10021201110 its reverse (1110212001), we get a palindrome (11131413111).

The spelling of 10021201110 in words is "ten billion, twenty-one million, two hundred one thousand, one hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 457 914 1371 2285 2742 4113 4570 6855 8226 13710 20565 41130 243647 487294 730941 1218235 1461882 2192823 2436470 3654705 4385646 7309410 10964115 21928230 111346679 222693358 334040037 556733395 668080074 1002120111 1113466790 1670200185 2004240222 3340400370 5010600555 10021201110