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12110112210020 = 2251155045964591
BaseRepresentation
bin1011000000111001101011…
…1011111011110001100100
31120212201022112121221101012
42300032122323323301210
53041403002211210040
641431150404521352
72356632604240616
oct260163273736144
946781275557335
1012110112210020
1139499626a5a70
1214370300b0258
1369ac95216a46
142dc1bda50db6
15160029cd0865
hexb039aefbc64

12110112210020 has 24 divisors (see below), whose sum is σ = 27743166154368. Its totient is φ = 4403677167200.

The previous prime is 12110112210019. The next prime is 12110112210023. The reversal of 12110112210020 is 2001221101121.

It is a junction number, because it is equal to n+sod(n) for n = 12110112209977 and 12110112210004.

It is not an unprimeable number, because it can be changed into a prime (12110112210023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27522982076 + ... + 27522982515.

It is an arithmetic number, because the mean of its divisors is an integer number (1155965256432).

Almost surely, 212110112210020 is an apocalyptic number.

12110112210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110112210020 is an abundant number, since it is smaller than the sum of its proper divisors (15633053944348).

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

12110112210020 is a wasteful number, since it uses less digits than its factorization.

12110112210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55045964611 (or 55045964609 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12110112210020 its reverse (2001221101121), we get a palindrome (14111333311141).

The spelling of 12110112210020 in words is "twelve trillion, one hundred ten billion, one hundred twelve million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 55045964591 110091929182 220183858364 275229822955 550459645910 605505610501 1100919291820 1211011221002 2422022442004 3027528052505 6055056105010 12110112210020