11220210221212 has 24 divisors (see below), whose sum is σ = 20219589718272. Its totient is φ = 5444617382400.

The previous prime is 11220210221179. The next prime is 11220210221243. The reversal of 11220210221212 is 21212201202211.

It is a self number, because there is not a number n which added to its sum of digits gives 11220210221212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179067933 + ... + 179130580.

It is an arithmetic number, because the mean of its divisors is an integer number (842482904928).

Almost surely, 2^{11220210221212} is an apocalyptic number.

It is an amenable number.

11220210221212 is a deficient number, since it is larger than the sum of its proper divisors (8999379497060).

11220210221212 is a wasteful number, since it uses less digits than its factorization.

11220210221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358198749 (or 358198747 counting only the distinct ones).

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

Adding to 11220210221212 its reverse (21212201202211), we get a palindrome (32432411423423).

The spelling of 11220210221212 in words is "eleven trillion, two hundred twenty billion, two hundred ten million, two hundred twenty-one thousand, two hundred twelve".