1012130010021 has 16 divisors (see below), whose sum is σ = 1538803998144. Its totient is φ = 586211046144.

The previous prime is 1012130010011. The next prime is 1012130010037. The reversal of 1012130010021 is 1200100312101.

It is not a de Polignac number, because 1012130010021 - 2¹³ = 1012130001829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012130009979 and 1012130010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012130010011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763294971 + ... + 763296296.

It is an arithmetic number, because the mean of its divisors is an integer number (96175249884).

Almost surely, 2^{1012130010021} is an apocalyptic number.

It is an amenable number.

1012130010021 is a deficient number, since it is larger than the sum of its proper divisors (526673988123).

1012130010021 is a wasteful number, since it uses less digits than its factorization.

1012130010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526591300.

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

Adding to 1012130010021 its reverse (1200100312101), we get a palindrome (2212230322122).

The spelling of 1012130010021 in words is "one trillion, twelve billion, one hundred thirty million, ten thousand, twenty-one".