12011221330 has 16 divisors (see below), whose sum is σ = 21880684224. Its totient is φ = 4746602800.

The previous prime is 12011221303. The next prime is 12011221331. The reversal of 12011221330 is 3312211021.

It is not an unprimeable number, because it can be changed into a prime (12011221331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7234846 + ... + 7236505.

It is an arithmetic number, because the mean of its divisors is an integer number (1367542764).

Almost surely, 2^12011221330 is an apocalyptic number.

12011221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011221330 is a deficient number, since it is larger than the sum of its proper divisors (9869462894).

12011221330 is a wasteful number, since it uses less digits than its factorization.

12011221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14471441.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12011221330 its reverse (3312211021), we get a palindrome (15323432351).

The spelling of 12011221330 in words is "twelve billion, eleven million, two hundred twenty-one thousand, three hundred thirty".