11112112101212 has 12 divisors (see below), whose sum is σ = 19450404431976. Its totient is φ = 5554853692080.

The previous prime is 11112112101199. The next prime is 11112112101247. The reversal of 11112112101212 is 21210121121111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300568838 + ... + 300605805.

It is an arithmetic number, because the mean of its divisors is an integer number (1620867035998).

Almost surely, 2^{11112112101212} is an apocalyptic number.

It is an amenable number.

11112112101212 is a deficient number, since it is larger than the sum of its proper divisors (8338292330764).

11112112101212 is a wasteful number, since it uses less digits than its factorization.

11112112101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601179268 (or 601179266 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11112112101212 its reverse (21210121121111), we get a palindrome (32322233222323).

The spelling of 11112112101212 in words is "eleven trillion, one hundred twelve billion, one hundred twelve million, one hundred one thousand, two hundred twelve".