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12222010121112 = 23321141709530869
BaseRepresentation
bin1011000111011010100010…
…0100100101101110011000
31121021102010220021210022200
42301312220210211232120
53100221134042333422
641554414113250200
72401003542630561
oct261665044455630
947242126253280
1012222010121112
1139923640a4840
12145485a563960
136a86b899575c
14303796d17168
15162dc88222ac
hexb1da8925b98

12222010121112 has 192 divisors, whose sum is σ = 37043471556000. Its totient is φ = 3608203622400.

The previous prime is 12222010121063. The next prime is 12222010121249. The reversal of 12222010121112 is 21112101022221.

12222010121112 is a `hidden beast` number, since 122 + 220 + 101 + 211 + 12 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22757214 + ... + 23288082.

Almost surely, 212222010121112 is an apocalyptic number.

12222010121112 is a gapful number since it is divisible by the number (12) 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 12222010121112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18521735778000).

12222010121112 is an abundant number, since it is smaller than the sum of its proper divisors (24821461434888).

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

12222010121112 is a wasteful number, since it uses less digits than its factorization.

12222010121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531642 (or 531635 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12222010121112 its reverse (21112101022221), we get a palindrome (33334111143333).

The spelling of 12222010121112 in words is "twelve trillion, two hundred twenty-two billion, ten million, one hundred twenty-one thousand, one hundred twelve".