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122113012220 = 22528012179811
BaseRepresentation
bin111000110111010000…
…0001011000111111100
3102200012021011202100022
41301232200023013330
54000041412342340
6132033053351312
711552034322613
oct1615640130774
9380167152308
10122113012220
1147873680511
121b7bb498538
13b690bacb64
145ca5c1c87a
15329a73d3b5
hex1c6e80b1fc

122113012220 has 24 divisors (see below), whose sum is σ = 256528995408. Its totient is φ = 48827744000.

The previous prime is 122113012207. The next prime is 122113012243. The reversal of 122113012220 is 22210311221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033886 + ... + 1145925.

It is an arithmetic number, because the mean of its divisors is an integer number (10688708142).

Almost surely, 2122113012220 is an apocalyptic number.

122113012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122113012220 is an abundant number, since it is smaller than the sum of its proper divisors (134415983188).

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

122113012220 is a wasteful number, since it uses less digits than its factorization.

122113012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182621 (or 2182619 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 122113012220 its reverse (22210311221), we get a palindrome (144323323441).

The spelling of 122113012220 in words is "one hundred twenty-two billion, one hundred thirteen million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 2801 5602 11204 14005 28010 56020 2179811 4359622 8719244 10899055 21798110 43596220 6105650611 12211301222 24422602444 30528253055 61056506110 122113012220