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12220332131112 = 23372174673130807
BaseRepresentation
bin1011000111010100010010…
…0011100100001100101000
31121021020210221212001202220
42301311010203210030220
53100204220011143422
641553535412154040
72400614136145500
oct261650443441450
947236727761686
1012220332131112
1139916829a5046
121454470608920
136a84ac154471
14303678120a00
15162d2b369e5c
hexb1d448e4328

12220332131112 has 192 divisors, whose sum is σ = 37637574203520. Its totient is φ = 3285411397632.

The previous prime is 12220332131071. The next prime is 12220332131141. The reversal of 12220332131112 is 21113123302221.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 93357213 + ... + 93488019.

It is an arithmetic number, because the mean of its divisors is an integer number (196029032310).

Almost surely, 212220332131112 is an apocalyptic number.

12220332131112 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 12220332131112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18818787101760).

12220332131112 is an abundant number, since it is smaller than the sum of its proper divisors (25417242072408).

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

12220332131112 is a wasteful number, since it uses less digits than its factorization.

12220332131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135520 (or 135509 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12220332131112 its reverse (21113123302221), we get a palindrome (33333455433333).

The spelling of 12220332131112 in words is "twelve trillion, two hundred twenty billion, three hundred thirty-two million, one hundred thirty-one thousand, one hundred twelve".