11112211011212 has 12 divisors (see below), whose sum is σ = 19446420920136. Its totient is φ = 5556090748320.

The previous prime is 11112211011211. The next prime is 11112211011229. The reversal of 11112211011212 is 21211011221111.

It is not an unprimeable number, because it can be changed into a prime (11112211011211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1898489 + ... + 5082192.

It is an arithmetic number, because the mean of its divisors is an integer number (1620535076678).

Almost surely, 2^{11112211011212} is an apocalyptic number.

It is an amenable number.

11112211011212 is a deficient number, since it is larger than the sum of its proper divisors (8334209908924).

11112211011212 is a wasteful number, since it uses less digits than its factorization.

11112211011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7378648 (or 7378646 counting only the distinct ones).

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

Adding to 11112211011212 its reverse (21211011221111), we get a palindrome (32323222232323).

The spelling of 11112211011212 in words is "eleven trillion, one hundred twelve billion, two hundred eleven million, eleven thousand, two hundred twelve".