1110121012 has 192 divisors, whose sum is σ = 2828722176. Its totient is φ = 366704640.

The previous prime is 1110120959. The next prime is 1110121021. The reversal of 1110121012 is 2101210111.

It is a super-2 number, since 2×1110121012² = 2464737322567808288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1110121012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3199023 + ... + 3199369.

It is an arithmetic number, because the mean of its divisors is an integer number (14732928).

Almost surely, 2^1110121012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1110121012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414361088).

1110121012 is an abundant number, since it is smaller than the sum of its proper divisors (1718601164).

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

1110121012 is a wasteful number, since it uses less digits than its factorization.

1110121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1110121012 is about 33318.4785366919. The cubic root of 1110121012 is about 1035.4364304116.

Adding to 1110121012 its reverse (2101210111), we get a palindrome (3211331123).

The spelling of 1110121012 in words is "one billion, one hundred ten million, one hundred twenty-one thousand, twelve".