11112221202212 has 48 divisors (see below), whose sum is σ = 21286899009600. Its totient is φ = 5044327263360.

The previous prime is 11112221202193. The next prime is 11112221202217. The reversal of 11112221202212 is 21220212221111.

It is not an unprimeable number, because it can be changed into a prime (11112221202217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55533839 + ... + 55733577.

It is an arithmetic number, because the mean of its divisors is an integer number (443477062700).

Almost surely, 2^{11112221202212} is an apocalyptic number.

It is an amenable number.

11112221202212 is a deficient number, since it is larger than the sum of its proper divisors (10174677807388).

11112221202212 is a wasteful number, since it uses less digits than its factorization.

11112221202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217356 (or 217354 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11112221202212 its reverse (21220212221111), we get a palindrome (32332433423323).

The spelling of 11112221202212 in words is "eleven trillion, one hundred twelve billion, two hundred twenty-one million, two hundred two thousand, two hundred twelve".