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12222010210020 = 223513175413170279
BaseRepresentation
bin1011000111011010100010…
…0100111011011011100100
31121021102010220110022021120
42301312220210323123210
53100221134103210040
641554414115213540
72401003543451022
oct261665044733344
947242126408246
1012222010210020
113992364155616
12145485a5a72b0
136a86b89c7070
14303796d3b712
15162dc883d7d0
hexb1da893b6e4

12222010210020 has 192 divisors, whose sum is σ = 39029385669120. Its totient is φ = 2830984814592.

The previous prime is 12222010210013. The next prime is 12222010210043. The reversal of 12222010210020 is 2001201022221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71691241 + ... + 71861519.

It is an arithmetic number, because the mean of its divisors is an integer number (203278050360).

Almost surely, 212222010210020 is an apocalyptic number.

12222010210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12222010210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19514692834560).

12222010210020 is an abundant number, since it is smaller than the sum of its proper divisors (26807375459100).

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

12222010210020 is a wasteful number, since it uses less digits than its factorization.

12222010210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175734 (or 175732 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12222010210020 its reverse (2001201022221), we get a palindrome (14223211232241).

The spelling of 12222010210020 in words is "twelve trillion, two hundred twenty-two billion, ten million, two hundred ten thousand, twenty".