1110121221212 has 12 divisors (see below), whose sum is σ = 1946872123560. Its totient is φ = 553872043056.

The previous prime is 1110121221199. The next prime is 1110121221233. The reversal of 1110121221212 is 2121221210111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297139787 + ... + 297143522.

It is an arithmetic number, because the mean of its divisors is an integer number (162239343630).

Almost surely, 2^{1110121221212} is an apocalyptic number.

It is an amenable number.

1110121221212 is a deficient number, since it is larger than the sum of its proper divisors (836750902348).

1110121221212 is a wasteful number, since it uses less digits than its factorization.

1110121221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594283780 (or 594283778 counting only the distinct ones).

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

Adding to 1110121221212 its reverse (2121221210111), we get a palindrome (3231342431323).

The spelling of 1110121221212 in words is "one trillion, one hundred ten billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred twelve".