10020211333421 has 2 divisors, whose sum is σ = 10020211333422. Its totient is φ = 10020211333420.

The previous prime is 10020211333381. The next prime is 10020211333519. The reversal of 10020211333421 is 12433311202001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6659424103396 + 3360787230025 = 2580586^2 + 1833245^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020211333421 - 2⁶ = 10020211333357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020211330421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010105666710 + 5010105666711.

It is an arithmetic number, because the mean of its divisors is an integer number (5010105666711).

Almost surely, 2^{10020211333421} is an apocalyptic number.

It is an amenable number.

10020211333421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020211333421 is an equidigital number, since it uses as much as digits as its factorization.

10020211333421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 10020211333421 its reverse (12433311202001), we get a palindrome (22453522535422).

The spelling of 10020211333421 in words is "ten trillion, twenty billion, two hundred eleven million, three hundred thirty-three thousand, four hundred twenty-one".