10200022220021 has 2 divisors, whose sum is σ = 10200022220022. Its totient is φ = 10200022220020.

The previous prime is 10200022219997. The next prime is 10200022220027. The reversal of 10200022220021 is 12002222000201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6990281239396 + 3209740980625 = 2643914^2 + 1791575^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200022220021 - 2⁶ = 10200022219957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10200022219978 and 10200022220005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10200022220027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100011110010 + 5100011110011.

It is an arithmetic number, because the mean of its divisors is an integer number (5100011110011).

Almost surely, 2^{10200022220021} is an apocalyptic number.

It is an amenable number.

10200022220021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200022220021 is an equidigital number, since it uses as much as digits as its factorization.

10200022220021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10200022220021 its reverse (12002222000201), we get a palindrome (22202244220222).

The spelling of 10200022220021 in words is "ten trillion, two hundred billion, twenty-two million, two hundred twenty thousand, twenty-one".