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22120003213 = 721141038967
BaseRepresentation
bin10100100110011101…
…000111011010001101
32010002120200120221021
4110212131013122031
5330300210100323
614054540234141
71412103632200
oct244635073215
963076616837
1022120003213
11942118a8a0
124353b3b951
13211697a4c9
1410dba9b937
15896e3505d
hex52674768d

22120003213 has 12 divisors (see below), whose sum is σ = 28070654112. Its totient is φ = 17236365720.

The previous prime is 22120003201. The next prime is 22120003261. The reversal of 22120003213 is 31230002122.

It is not a de Polignac number, because 22120003213 - 233 = 13530068621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120003513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20518945 + ... + 20520022.

It is an arithmetic number, because the mean of its divisors is an integer number (2339221176).

Almost surely, 222120003213 is an apocalyptic number.

It is an amenable number.

22120003213 is a deficient number, since it is larger than the sum of its proper divisors (5950650899).

22120003213 is a wasteful number, since it uses less digits than its factorization.

22120003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41038992 (or 41038985 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22120003213 its reverse (31230002122), we get a palindrome (53350005335).

The spelling of 22120003213 in words is "twenty-two billion, one hundred twenty million, three thousand, two hundred thirteen".

Divisors: 1 7 11 49 77 539 41038967 287272769 451428637 2010909383 3160000459 22120003213