1012031302221 has 16 divisors (see below), whose sum is σ = 1524717595200. Its totient is φ = 663252151824.

The previous prime is 1012031302211. The next prime is 1012031302279. The reversal of 1012031302221 is 1222031302101.

1012031302221 is a `hidden beast` number, since 10 + 120 + 313 + 0 + 2 + 221 = 666.

It is not a de Polignac number, because 1012031302221 - 2⁹ = 1012031301709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012031302194 and 1012031302203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012031302211) 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, 317647906 + ... + 317651091.

It is an arithmetic number, because the mean of its divisors is an integer number (95294849700).

Almost surely, 2^{1012031302221} is an apocalyptic number.

It is an amenable number.

1012031302221 is a deficient number, since it is larger than the sum of its proper divisors (512686292979).

1012031302221 is an equidigital number, since it uses as much as digits as its factorization.

1012031302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635299065 (or 635299059 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1012031302221 its reverse (1222031302101), we get a palindrome (2234062604322).

The spelling of 1012031302221 in words is "one trillion, twelve billion, thirty-one million, three hundred two thousand, two hundred twenty-one".