1012121120 has 24 divisors (see below), whose sum is σ = 2391136524. Its totient is φ = 404848384.

The previous prime is 1012121113. The next prime is 1012121137. The reversal of 1012121120 is 211212101.

1012121120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 965717776 + 46403344 = 31076^2 + 6812^2 .

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, 3162719 + ... + 3163038.

Almost surely, 2^1012121120 is an apocalyptic number.

1012121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012121120 is an abundant number, since it is smaller than the sum of its proper divisors (1379015404).

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

1012121120 is an equidigital number, since it uses as much as digits as its factorization.

1012121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6325772 (or 6325764 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1012121120 is about 31813.8510715066. The cubic root of 1012121120 is about 1004.0241577654.

Adding to 1012121120 its reverse (211212101), we get a palindrome (1223333221).

The spelling of 1012121120 in words is "one billion, twelve million, one hundred twenty-one thousand, one hundred twenty".