1040021112 has 32 divisors (see below), whose sum is σ = 2800057680. Its totient is φ = 320006400.

The previous prime is 1040021111. The next prime is 1040021131. The reversal of 1040021112 is 2111200401.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040021111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666389 + ... + 1667012.

Almost surely, 2^1040021112 is an apocalyptic number.

1040021112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1040021112 is an abundant number, since it is smaller than the sum of its proper divisors (1760036568).

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

1040021112 is a wasteful number, since it uses less digits than its factorization.

1040021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333423 (or 3333419 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1040021112 is about 32249.3583191976. The cubic root of 1040021112 is about 1013.1662594858.

Adding to 1040021112 its reverse (2111200401), we get a palindrome (3151221513).

The spelling of 1040021112 in words is "one billion, forty million, twenty-one thousand, one hundred twelve".