1020040212 has 24 divisors (see below), whose sum is σ = 2389976512. Its totient is φ = 338601600.

The previous prime is 1020040207. The next prime is 1020040237. The reversal of 1020040212 is 2120400201.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173464 + ... + 179247.

Almost surely, 2^1020040212 is an apocalyptic number.

1020040212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020040212 is an abundant number, since it is smaller than the sum of its proper divisors (1369936300).

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

1020040212 is a wasteful number, since it uses less digits than its factorization.

1020040212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352959 (or 352957 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1020040212 is about 31938.0683824179. The cubic root of 1020040212 is about 1006.6359375929.

Adding to 1020040212 its reverse (2120400201), we get a palindrome (3140440413).

The spelling of 1020040212 in words is "one billion, twenty million, forty thousand, two hundred twelve".