11112212321212 has 24 divisors (see below), whose sum is σ = 19506395417600. Its totient is φ = 5538969593136.

The previous prime is 11112212321209. The next prime is 11112212321227. The reversal of 11112212321212 is 21212321221111.

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, 1757443 + ... + 5031205.

Almost surely, 2^{11112212321212} is an apocalyptic number.

It is an amenable number.

11112212321212 is a deficient number, since it is larger than the sum of its proper divisors (8394183096388).

11112212321212 is a wasteful number, since it uses less digits than its factorization.

11112212321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276385 (or 3276383 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

Adding to 11112212321212 its reverse (21212321221111), we get a palindrome (32324533542323).

The spelling of 11112212321212 in words is "eleven trillion, one hundred twelve billion, two hundred twelve million, three hundred twenty-one thousand, two hundred twelve".