10200122021 has 2 divisors, whose sum is σ = 10200122022. Its totient is φ = 10200122020.

The previous prime is 10200122011. The next prime is 10200122059. The reversal of 10200122021 is 12022100201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10177984996 + 22137025 = 100886^2 + 4705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10200122021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10200121993 and 10200122011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10200122011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100061010 + 5100061011.

It is an arithmetic number, because the mean of its divisors is an integer number (5100061011).

Almost surely, 2^10200122021 is an apocalyptic number.

It is an amenable number.

10200122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200122021 is an equidigital number, since it uses as much as digits as its factorization.

10200122021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10200122021 its reverse (12022100201), we get a palindrome (22222222222).

The spelling of 10200122021 in words is "ten billion, two hundred million, one hundred twenty-two thousand, twenty-one".