1021130001012 has 96 divisors (see below), whose sum is σ = 2684198006784. Its totient is φ = 299327558400.

The previous prime is 1021130001007. The next prime is 1021130001013. The reversal of 1021130001012 is 2101000311201.

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 (1021130001013) 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 31 ways as a sum of consecutive naturals, for example, 10069063 + ... + 10169969.

It is an arithmetic number, because the mean of its divisors is an integer number (27960395904).

Almost surely, 2^{1021130001012} is an apocalyptic number.

1021130001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021130001012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342099003392).

1021130001012 is an abundant number, since it is smaller than the sum of its proper divisors (1663068005772).

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

1021130001012 is a wasteful number, since it uses less digits than its factorization.

1021130001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103429 (or 103427 counting only the distinct ones).

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

Adding to 1021130001012 its reverse (2101000311201), we get a palindrome (3122130312213).

The spelling of 1021130001012 in words is "one trillion, twenty-one billion, one hundred thirty million, one thousand, twelve".