11221100222212 has 48 divisors (see below), whose sum is σ = 19945591690752. Its totient is φ = 5523034343040.

The previous prime is 11221100222207. The next prime is 11221100222221. The reversal of 11221100222212 is 21222200112211.

It is a self number, because there is not a number n which added to its sum of digits gives 11221100222212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182446938 + ... + 182508430.

It is an arithmetic number, because the mean of its divisors is an integer number (415533160224).

Almost surely, 2^{11221100222212} is an apocalyptic number.

It is an amenable number.

11221100222212 is a deficient number, since it is larger than the sum of its proper divisors (8724491468540).

11221100222212 is a wasteful number, since it uses less digits than its factorization.

11221100222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64228 (or 64226 counting only the distinct ones).

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

Adding to 11221100222212 its reverse (21222200112211), we get a palindrome (32443300334423).

The spelling of 11221100222212 in words is "eleven trillion, two hundred twenty-one billion, one hundred million, two hundred twenty-two thousand, two hundred twelve".