12011201010 has 24 divisors (see below), whose sum is σ = 31229122860. Its totient is φ = 3202986912.

The previous prime is 12011201009. The next prime is 12011201011. The reversal of 12011201010 is 1010211021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12011201009) and next prime (12011201011).

It can be written as a sum of positive squares in 2 ways, for example, as 11344167081 + 667033929 = 106509^2 + 25827^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12011200983 and 12011201001.

It is not an unprimeable number, because it can be changed into a prime (12011201011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66728805 + ... + 66728984.

Almost surely, 2^12011201010 is an apocalyptic number.

12011201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011201010 is an abundant number, since it is smaller than the sum of its proper divisors (19217921850).

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

12011201010 is a wasteful number, since it uses less digits than its factorization.

12011201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133457802 (or 133457799 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12011201010 its reverse (1010211021), we get a palindrome (13021412031).

The spelling of 12011201010 in words is "twelve billion, eleven million, two hundred one thousand, ten".