12011201222 has 4 divisors (see below), whose sum is σ = 18016801836. Its totient is φ = 6005600610.

The previous prime is 12011201221. The next prime is 12011201281. The reversal of 12011201222 is 22210211021.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12011201197 and 12011201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011201221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3002800304 + ... + 3002800307.

It is an arithmetic number, because the mean of its divisors is an integer number (4504200459).

Almost surely, 2^12011201222 is an apocalyptic number.

12011201222 is a deficient number, since it is larger than the sum of its proper divisors (6005600614).

12011201222 is an equidigital number, since it uses as much as digits as its factorization.

12011201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005600613.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12011201222 its reverse (22210211021), we get a palindrome (34221412243).

The spelling of 12011201222 in words is "twelve billion, eleven million, two hundred one thousand, two hundred twenty-two".