1021242012 has 48 divisors (see below), whose sum is σ = 2725185792. Its totient is φ = 291582720.

The previous prime is 1021242011. The next prime is 1021242023. The reversal of 1021242012 is 2102421201.

It is a junction number, because it is equal to n+sod(n) for n = 1021241982 and 1021242000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021242011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154087 + ... + 160577.

It is an arithmetic number, because the mean of its divisors is an integer number (56774704).

Almost surely, 2^1021242012 is an apocalyptic number.

1021242012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021242012 is an abundant number, since it is smaller than the sum of its proper divisors (1703943780).

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

1021242012 is a wasteful number, since it uses less digits than its factorization.

1021242012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8378 (or 8376 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1021242012 is about 31956.8773818720. The cubic root of 1021242012 is about 1007.0311181789.

Adding to 1021242012 its reverse (2102421201), we get a palindrome (3123663213).

The spelling of 1021242012 in words is "one billion, twenty-one million, two hundred forty-two thousand, twelve".