12211220002012 has 24 divisors (see below), whose sum is σ = 21461108250960. Its totient is φ = 6079493222400.

The previous prime is 12211220001991. The next prime is 12211220002019. The reversal of 12211220002012 is 21020002211221.

It is a happy number.

It is a super-2 number, since 2×12211220002012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211220002019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348262 + ... + 4954162.

It is an arithmetic number, because the mean of its divisors is an integer number (894212843790).

Almost surely, 2^{12211220002012} is an apocalyptic number.

It is an amenable number.

12211220002012 is a deficient number, since it is larger than the sum of its proper divisors (9249888248948).

12211220002012 is a wasteful number, since it uses less digits than its factorization.

12211220002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608741 (or 4608739 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12211220002012 its reverse (21020002211221), we get a palindrome (33231222213233).

The spelling of 12211220002012 in words is "twelve trillion, two hundred eleven billion, two hundred twenty million, two thousand, twelve".