11112112210212 has 72 divisors (see below), whose sum is σ = 30258729741240. Its totient is φ = 3418083901440.

The previous prime is 11112112210153. The next prime is 11112112210237. The reversal of 11112112210212 is 21201221121111.

It is a happy number.

11112112210212 is a `hidden beast` number, since 11 + 11 + 211 + 221 + 0 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1532802468096 + 9579309742116 = 1238064^2 + 3095046^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2008239 + ... + 5124182.

It is an arithmetic number, because the mean of its divisors is an integer number (420260135295).

Almost surely, 2^{11112112210212} is an apocalyptic number.

11112112210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11112112210212 is an abundant number, since it is smaller than the sum of its proper divisors (19146617531028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11112112210212 is a wasteful number, since it uses less digits than its factorization.

11112112210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7135773 (or 7135768 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11112112210212 its reverse (21201221121111), we get a palindrome (32313333331323).

The spelling of 11112112210212 in words is "eleven trillion, one hundred twelve billion, one hundred twelve million, two hundred ten thousand, two hundred twelve".