11111122102212 has 36 divisors (see below), whose sum is σ = 30639760949616. Its totient is φ = 3367006697520.

The previous prime is 11111122102207. The next prime is 11111122102219. The reversal of 11111122102212 is 21220122111111.

It is a happy number.

11111122102212 is a `hidden beast` number, since 111 + 111 + 221 + 0 + 221 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (11111122102219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14029194178 + ... + 14029194969.

Almost surely, 2^{11111122102212} is an apocalyptic number.

11111122102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11111122102212 is an abundant number, since it is smaller than the sum of its proper divisors (19528638847404).

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

11111122102212 is a wasteful number, since it uses less digits than its factorization.

11111122102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28058389168 (or 28058389163 counting only the distinct ones).

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

Adding to 11111122102212 its reverse (21220122111111), we get a palindrome (32331244213323).

The spelling of 11111122102212 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-two million, one hundred two thousand, two hundred twelve".