11221212202012 has 24 divisors (see below), whose sum is σ = 19908132603632. Its totient is φ = 5533189833600.

The previous prime is 11221212201961. The next prime is 11221212202027. The reversal of 11221212202012 is 21020221212211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965062 + ... + 4834642.

Almost surely, 2^{11221212202012} is an apocalyptic number.

It is an amenable number.

11221212202012 is a deficient number, since it is larger than the sum of its proper divisors (8686920401620).

11221212202012 is a wasteful number, since it uses less digits than its factorization.

11221212202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879589 (or 3879587 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11221212202012 its reverse (21020221212211), we get a palindrome (32241433414223).

The spelling of 11221212202012 in words is "eleven trillion, two hundred twenty-one billion, two hundred twelve million, two hundred two thousand, twelve".