1021012212071 has 2 divisors, whose sum is σ = 1021012212072. Its totient is φ = 1021012212070.

The previous prime is 1021012212049. The next prime is 1021012212151. The reversal of 1021012212071 is 1702122101201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021012212071 - 2³⁰ = 1019938470247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021092212071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510506106035 + 510506106036.

It is an arithmetic number, because the mean of its divisors is an integer number (510506106036).

Almost surely, 2^{1021012212071} is an apocalyptic number.

1021012212071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021012212071 is an equidigital number, since it uses as much as digits as its factorization.

1021012212071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 1021012212071 its reverse (1702122101201), we get a palindrome (2723134313272).

The spelling of 1021012212071 in words is "one trillion, twenty-one billion, twelve million, two hundred twelve thousand, seventy-one".