110221011221212 has 48 divisors (see below), whose sum is σ = 205825779980800. Its totient is φ = 51493316008320.

The previous prime is 110221011221161. The next prime is 110221011221213. The reversal of 110221011221212 is 212122110122011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 110221011221212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110221011221213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214289839 + ... + 214803577.

Almost surely, 2^{110221011221212} is an apocalyptic number.

It is an amenable number.

110221011221212 is a deficient number, since it is larger than the sum of its proper divisors (95604768759588).

110221011221212 is a wasteful number, since it uses less digits than its factorization.

110221011221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552506 (or 552504 counting only the distinct ones).

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

Adding to 110221011221212 its reverse (212122110122011), we get a palindrome (322343121343223).

The spelling of 110221011221212 in words is "one hundred ten trillion, two hundred twenty-one billion, eleven million, two hundred twenty-one thousand, two hundred twelve".