12010201128 has 48 divisors (see below), whose sum is σ = 33732360480. Its totient is φ = 4003399728.

The previous prime is 12010201127. The next prime is 12010201139. The reversal of 12010201128 is 82110201021.

It is a super-2 number, since 2×12010201128² (a number of 21 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12010201128.

It is not an unprimeable number, because it can be changed into a prime (12010201121) 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, 3087100 + ... + 3090987.

It is an arithmetic number, because the mean of its divisors is an integer number (702757510).

Almost surely, 2^12010201128 is an apocalyptic number.

12010201128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12010201128 is an abundant number, since it is smaller than the sum of its proper divisors (21722159352).

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

12010201128 is an equidigital number, since it uses as much as digits as its factorization.

12010201128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6178108 (or 6178092 counting only the distinct ones).

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

Adding to 12010201128 its reverse (82110201021), we get a palindrome (94120402149).

The spelling of 12010201128 in words is "twelve billion, ten million, two hundred one thousand, one hundred twenty-eight".