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22114401220 = 2255691943269
BaseRepresentation
bin10100100110000111…
…101111101111000100
32010002012010222110001
4110212013233233010
5330242241314340
614054220211044
71412005210642
oct244607575704
963065128401
1022114401220
119419003a4a
124352099a84
132115768712
1410db040192
158966ca29a
hex5261efbc4

22114401220 has 24 divisors (see below), whose sum is σ = 46521883800. Its totient is φ = 8830209792.

The previous prime is 22114401143. The next prime is 22114401223. The reversal of 22114401220 is 2210441122.

It can be written as a sum of positive squares in 4 ways, for example, as 193822084 + 21920579136 = 13922^2 + 148056^2 .

It is not an unprimeable number, because it can be changed into a prime (22114401223) by changing a digit.

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, 960255 + ... + 983014.

It is an arithmetic number, because the mean of its divisors is an integer number (1938411825).

Almost surely, 222114401220 is an apocalyptic number.

22114401220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22114401220 is an abundant number, since it is smaller than the sum of its proper divisors (24407482580).

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

22114401220 is a wasteful number, since it uses less digits than its factorization.

22114401220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943847 (or 1943845 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22114401220 its reverse (2210441122), we get a palindrome (24324842342).

The spelling of 22114401220 in words is "twenty-two billion, one hundred fourteen million, four hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 569 1138 2276 2845 5690 11380 1943269 3886538 7773076 9716345 19432690 38865380 1105720061 2211440122 4422880244 5528600305 11057200610 22114401220