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112121110112020 = 22579342532071723
BaseRepresentation
bin11001011111100100111010…
…111100001010011100010100
3112200222200011221102202222121
4121133210322330022130110
5104143443013142041040
61034243421002505324
732421324426140332
oct3137447274123424
9480880157382877
10112121110112020
11327a8328737749
12106a99a4b05244
134a73c8aa013b9
141d98995348b52
15ce67d9d77c4a
hex65f93af0a714

112121110112020 has 48 divisors (see below), whose sum is σ = 238441841890560. Its totient is φ = 44279428093056.

The previous prime is 112121110111991. The next prime is 112121110112071. The reversal of 112121110112020 is 20211011121211.

It is a super-2 number, since 2×1121211101120202 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112121110111985 and 112121110112003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53083879 + ... + 55155601.

It is an arithmetic number, because the mean of its divisors is an integer number (4967538372720).

Almost surely, 2112121110112020 is an apocalyptic number.

112121110112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112121110112020 is an abundant number, since it is smaller than the sum of its proper divisors (126320731778540).

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

112121110112020 is a wasteful number, since it uses less digits than its factorization.

112121110112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106064 (or 2106062 counting only the distinct ones).

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

Adding to 112121110112020 its reverse (20211011121211), we get a palindrome (132332121233231).

The spelling of 112121110112020 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred ten million, one hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 34253 68506 137012 171265 342530 685060 2071723 2705987 4143446 5411974 8286892 10358615 10823948 13529935 20717230 27059870 41434460 54119740 163666117 327332234 654664468 818330585 1636661170 3273322340 70962727919 141925455838 283850911676 354813639595 709627279190 1419254558380 5606055505601 11212111011202 22424222022404 28030277528005 56060555056010 112121110112020