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12201102120220 = 22513148313164137
BaseRepresentation
bin1011000110001100101001…
…0110111001010100011100
31121012102011210012022000021
42301203022112321110130
53044400324120321340
641541035310241524
72366333453563006
oct261431226712434
947172153168007
1012201102120220
113984505079262
1214507a44b62a4
136a67361527b0
143027721d1376
151625a2ee8e4a
hexb18ca5b951c

12201102120220 has 48 divisors (see below), whose sum is σ = 27595130951808. Its totient is φ = 4504717140480.

The previous prime is 12201102120211. The next prime is 12201102120227. The reversal of 12201102120220 is 2202120110221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12201102120194 and 12201102120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201102120227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2273992 + ... + 5438128.

It is an arithmetic number, because the mean of its divisors is an integer number (574898561496).

Almost surely, 212201102120220 is an apocalyptic number.

12201102120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201102120220 is an abundant number, since it is smaller than the sum of its proper divisors (15394028831588).

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

12201102120220 is a wasteful number, since it uses less digits than its factorization.

12201102120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178990 (or 3178988 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12201102120220 its reverse (2202120110221), we get a palindrome (14403222230441).

The spelling of 12201102120220 in words is "twelve trillion, two hundred one billion, one hundred two million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 14831 29662 59324 74155 148310 192803 296620 385606 771212 964015 1928030 3164137 3856060 6328274 12656548 15820685 31641370 41133781 63282740 82267562 164535124 205668905 411337810 822675620 46927315847 93854631694 187709263388 234636579235 469273158470 610055106011 938546316940 1220110212022 2440220424044 3050275530055 6100551060110 12201102120220