11112101212212 has 192 divisors, whose sum is σ = 38680818892800. Its totient is φ = 2664240024960.

The previous prime is 11112101212159. The next prime is 11112101212231. The reversal of 11112101212212 is 21221210121111.

It is a happy number.

11112101212212 is a `hidden beast` number, since 1 + 111 + 210 + 121 + 221 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51285412 + ... + 51501627.

It is an arithmetic number, because the mean of its divisors is an integer number (201462598400).

Almost surely, 2^{11112101212212} is an apocalyptic number.

11112101212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11112101212212 is an abundant number, since it is smaller than the sum of its proper divisors (27568717680588).

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

11112101212212 is a wasteful number, since it uses less digits than its factorization.

11112101212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102787083 (or 102787075 counting only the distinct ones).

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

Adding to 11112101212212 its reverse (21221210121111), we get a palindrome (32333311333323).

The spelling of 11112101212212 in words is "eleven trillion, one hundred twelve billion, one hundred one million, two hundred twelve thousand, two hundred twelve".