11221013212 has 12 divisors (see below), whose sum is σ = 19641008016. Its totient is φ = 5609296640.

The previous prime is 11221013201. The next prime is 11221013227. The reversal of 11221013212 is 21231012211.

11221013212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11221013212² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 281464 + ... + 318847.

It is an arithmetic number, because the mean of its divisors is an integer number (1636750668).

Almost surely, 2^11221013212 is an apocalyptic number.

It is an amenable number.

11221013212 is a deficient number, since it is larger than the sum of its proper divisors (8419994804).

11221013212 is a wasteful number, since it uses less digits than its factorization.

11221013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604988 (or 604986 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11221013212 its reverse (21231012211), we get a palindrome (32452025423).

The spelling of 11221013212 in words is "eleven billion, two hundred twenty-one million, thirteen thousand, two hundred twelve".