12012221002 has 16 divisors (see below), whose sum is σ = 18994154400. Its totient is φ = 5681752560.

The previous prime is 12012220963. The next prime is 12012221057. The reversal of 12012221002 is 20012221021.

It is a happy number.

It is a super-3 number, since 3×12012221002³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202477 + ... + 254992.

It is an arithmetic number, because the mean of its divisors is an integer number (1187134650).

Almost surely, 2^12012221002 is an apocalyptic number.

12012221002 is a deficient number, since it is larger than the sum of its proper divisors (6981933398).

12012221002 is a wasteful number, since it uses less digits than its factorization.

12012221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458181.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12012221002 its reverse (20012221021), we get a palindrome (32024442023).

The spelling of 12012221002 in words is "twelve billion, twelve million, two hundred twenty-one thousand, two".