11100220211212 has 24 divisors (see below), whose sum is σ = 21192059241360. Its totient is φ = 5045380892160.

The previous prime is 11100220211159. The next prime is 11100220211221. The reversal of 11100220211212 is 21211202200111.

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, 3047137 + ... + 5611192.

It is an arithmetic number, because the mean of its divisors is an integer number (883002468390).

Almost surely, 2^{11100220211212} is an apocalyptic number.

It is an amenable number.

11100220211212 is a deficient number, since it is larger than the sum of its proper divisors (10091839030148).

11100220211212 is a wasteful number, since it uses less digits than its factorization.

11100220211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8687481 (or 8687479 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11100220211212 its reverse (21211202200111), we get a palindrome (32311422411323).

The spelling of 11100220211212 in words is "eleven trillion, one hundred billion, two hundred twenty million, two hundred eleven thousand, two hundred twelve".