210021200010047 has 2 divisors, whose sum is σ = 210021200010048. Its totient is φ = 210021200010046.

The previous prime is 210021200009953. The next prime is 210021200010119. The reversal of 210021200010047 is 740010002120012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210021200010047 - 2³⁸ = 209746322103103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210021200010247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105010600005023 + 105010600005024.

It is an arithmetic number, because the mean of its divisors is an integer number (105010600005024).

Almost surely, 2^{210021200010047} is an apocalyptic number.

210021200010047 is a deficient number, since it is larger than the sum of its proper divisors (1).

210021200010047 is an equidigital number, since it uses as much as digits as its factorization.

210021200010047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 210021200010047 its reverse (740010002120012), we get a palindrome (950031202130059).

The spelling of 210021200010047 in words is "two hundred ten trillion, twenty-one billion, two hundred million, ten thousand, forty-seven".