10200220012121 has 2 divisors, whose sum is σ = 10200220012122. Its totient is φ = 10200220012120.

The previous prime is 10200220012117. The next prime is 10200220012127. The reversal of 10200220012121 is 12121002200201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10192726686025 + 7493326096 = 3192605^2 + 86564^2 .

It is an emirp because it is prime and its reverse (12121002200201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10200220012121 - 2² = 10200220012117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10200220012096 and 10200220012105.

It is not a weakly prime, because it can be changed into another prime (10200220012127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100110006060 + 5100110006061.

It is an arithmetic number, because the mean of its divisors is an integer number (5100110006061).

Almost surely, 2^{10200220012121} is an apocalyptic number.

It is an amenable number.

10200220012121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200220012121 is an equidigital number, since it uses as much as digits as its factorization.

10200220012121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10200220012121 its reverse (12121002200201), we get a palindrome (22321222212322).

The spelling of 10200220012121 in words is "ten trillion, two hundred billion, two hundred twenty million, twelve thousand, one hundred twenty-one".