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21322211130 = 23251141836329
BaseRepresentation
bin10011110110111001…
…110001111100111010
32001000222111112221100
4103312321301330322
5322131441224010
613443440552230
71353245542563
oct236671617472
961028445840
1021322211130
1190519178a0
124170922676
13201a5bb59c
141063b4916a
1584bd972c0
hex4f6e71f3a

21322211130 has 192 divisors, whose sum is σ = 62708929920. Its totient is φ = 4981401600.

The previous prime is 21322211117. The next prime is 21322211147. The reversal of 21322211130 is 3111222312.

21322211130 is a `hidden beast` number, since 2 + 1 + 322 + 211 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3365806 + ... + 3372134.

It is an arithmetic number, because the mean of its divisors is an integer number (326609010).

Almost surely, 221322211130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21322211130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31354464960).

21322211130 is an abundant number, since it is smaller than the sum of its proper divisors (41386718790).

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

21322211130 is a wasteful number, since it uses less digits than its factorization.

21322211130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6477 (or 6474 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21322211130 its reverse (3111222312), we get a palindrome (24433433442).

The spelling of 21322211130 in words is "twenty-one billion, three hundred twenty-two million, two hundred eleven thousand, one hundred thirty".