1110121212 has 24 divisors (see below), whose sum is σ = 2660291536. Its totient is φ = 360039168.

The previous prime is 1110121163. The next prime is 1110121237. The reversal of 1110121212 is 2121210111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249693 + ... + 1250580.

Almost surely, 2^1110121212 is an apocalyptic number.

1110121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1110121212 is an abundant number, since it is smaller than the sum of its proper divisors (1550170324).

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

1110121212 is a wasteful number, since it uses less digits than its factorization.

1110121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500317 (or 2500315 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1110121212 is about 33318.4815380293. The cubic root of 1110121212 is about 1035.4364925931.

Adding to 1110121212 its reverse (2121210111), we get a palindrome (3231331323).

The spelling of 1110121212 in words is "one billion, one hundred ten million, one hundred twenty-one thousand, two hundred twelve".