1140421212 has 72 divisors (see below), whose sum is σ = 3297840000. Its totient is φ = 325509408.

The previous prime is 1140421171. The next prime is 1140421223. The reversal of 1140421212 is 2121240411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376239 + ... + 379257.

Almost surely, 2^1140421212 is an apocalyptic number.

1140421212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1140421212 is an abundant number, since it is smaller than the sum of its proper divisors (2157418788).

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

1140421212 is a wasteful number, since it uses less digits than its factorization.

1140421212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535 (or 4530 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1140421212 is about 33770.1230675874. The cubic root of 1140421212 is about 1044.7725707918.

Adding to 1140421212 its reverse (2121240411), we get a palindrome (3261661623).

The spelling of 1140421212 in words is "one billion, one hundred forty million, four hundred twenty-one thousand, two hundred twelve".