111001212102212 has 72 divisors (see below), whose sum is σ = 209086109239560. Its totient is φ = 51547500748800.

The previous prime is 111001212102197. The next prime is 111001212102269. The reversal of 111001212102212 is 212201212100111.

It can be written as a sum of positive squares in 12 ways, for example, as 4882040497156 + 106119171605056 = 2209534^2 + 10301416^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28058462 + ... + 31769162.

Almost surely, 2^{111001212102212} is an apocalyptic number.

It is an amenable number.

111001212102212 is a deficient number, since it is larger than the sum of its proper divisors (98084897137348).

111001212102212 is a wasteful number, since it uses less digits than its factorization.

111001212102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711081 (or 3711062 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111001212102212 its reverse (212201212100111), we get a palindrome (323202424202323).

The spelling of 111001212102212 in words is "one hundred eleven trillion, one billion, two hundred twelve million, one hundred two thousand, two hundred twelve".