111221210102212 has 24 divisors (see below), whose sum is σ = 222736267565504. Its totient is φ = 47603265609312.

The previous prime is 111221210102201. The next prime is 111221210102257. The reversal of 111221210102212 is 212201012122111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111221210102212.

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 7 ways as a sum of consecutive naturals, for example, 2623615578 + ... + 2623657969.

Almost surely, 2^{111221210102212} is an apocalyptic number.

It is an amenable number.

111221210102212 is an abundant number, since it is smaller than the sum of its proper divisors (111515057463292).

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

111221210102212 is a wasteful number, since it uses less digits than its factorization.

111221210102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5247274315 (or 5247274313 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111221210102212 its reverse (212201012122111), we get a palindrome (323422222224323).

The spelling of 111221210102212 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred ten million, one hundred two thousand, two hundred twelve".