1021130012 has 36 divisors (see below), whose sum is σ = 2117971800. Its totient is φ = 429365664.

The previous prime is 1021130003. The next prime is 1021130029. The reversal of 1021130012 is 2100311201.

It is a junction number, because it is equal to n+sod(n) for n = 1021129975 and 1021130002.

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 11 ways as a sum of consecutive naturals, for example, 38762 + ... + 59537.

It is an arithmetic number, because the mean of its divisors is an integer number (58832550).

Almost surely, 2^1021130012 is an apocalyptic number.

It is an amenable number.

1021130012 is an abundant number, since it is smaller than the sum of its proper divisors (1096841788).

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

1021130012 is a wasteful number, since it uses less digits than its factorization.

1021130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98370 (or 98361 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1021130012 is about 31955.1249723734. The cubic root of 1021130012 is about 1006.9943030044.

Adding to 1021130012 its reverse (2100311201), we get a palindrome (3121441213).

The spelling of 1021130012 in words is "one billion, twenty-one million, one hundred thirty thousand, twelve".