1021210011047 has 2 divisors, whose sum is σ = 1021210011048. Its totient is φ = 1021210011046.

The previous prime is 1021210011001. The next prime is 1021210011089. The reversal of 1021210011047 is 7401100121201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021210011047 - 2⁶ = 1021210010983 is a prime.

It is a super-2 number, since 2×1021210011047² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021210011847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510605005523 + 510605005524.

It is an arithmetic number, because the mean of its divisors is an integer number (510605005524).

Almost surely, 2^{1021210011047} is an apocalyptic number.

1021210011047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021210011047 is an equidigital number, since it uses as much as digits as its factorization.

1021210011047 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 1021210011047 its reverse (7401100121201), we get a palindrome (8422310132248).

The spelling of 1021210011047 in words is "one trillion, twenty-one billion, two hundred ten million, eleven thousand, forty-seven".