10047621355021 has 2 divisors, whose sum is σ = 10047621355022. Its totient is φ = 10047621355020.

The previous prime is 10047621355019. The next prime is 10047621355061. The reversal of 10047621355021 is 12055312674001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7659947410921 + 2387673944100 = 2767661^2 + 1545210^2 .

It is an emirp because it is prime and its reverse (12055312674001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10047621355021 - 2¹ = 10047621355019 is a prime.

It is a super-2 number, since 2×10047621355021² (a number of 27 digits) contains 22 as substring.

Together with 10047621355019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10047621355061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5023810677510 + 5023810677511.

It is an arithmetic number, because the mean of its divisors is an integer number (5023810677511).

Almost surely, 2^{10047621355021} is an apocalyptic number.

It is an amenable number.

10047621355021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10047621355021 is an equidigital number, since it uses as much as digits as its factorization.

10047621355021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 10047621355021 in words is "ten trillion, forty-seven billion, six hundred twenty-one million, three hundred fifty-five thousand, twenty-one".