10510021001 has 2 divisors, whose sum is σ = 10510021002. Its totient is φ = 10510021000.

The previous prime is 10510020973. The next prime is 10510021007. The reversal of 10510021001 is 10012001501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7863432976 + 2646588025 = 88676^2 + 51445^2 .

It is a cyclic number.

It is not a de Polignac number, because 10510021001 - 2²² = 10505826697 is a prime.

It is a super-2 number, since 2×10510021001² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10510021007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5255010500 + 5255010501.

It is an arithmetic number, because the mean of its divisors is an integer number (5255010501).

Almost surely, 2^10510021001 is an apocalyptic number.

It is an amenable number.

10510021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10510021001 is an equidigital number, since it uses as much as digits as its factorization.

10510021001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10, while the sum is 11.

Adding to 10510021001 its reverse (10012001501), we get a palindrome (20522022502).

The spelling of 10510021001 in words is "ten billion, five hundred ten million, twenty-one thousand, one".