10020200020001 has 2 divisors, whose sum is σ = 10020200020002. Its totient is φ = 10020200020000.

The previous prime is 10020200019997. The next prime is 10020200020043. The reversal of 10020200020001 is 10002000202001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8502770234401 + 1517429785600 = 2915951^2 + 1231840^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020200020001 - 2² = 10020200019997 is a prime.

It is not a weakly prime, because it can be changed into another prime (10020200020091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010100010000 + 5010100010001.

It is an arithmetic number, because the mean of its divisors is an integer number (5010100010001).

Almost surely, 2^{10020200020001} is an apocalyptic number.

It is an amenable number.

10020200020001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020200020001 is an equidigital number, since it uses as much as digits as its factorization.

10020200020001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 10020200020001 its reverse (10002000202001), we get a palindrome (20022200222002).

It can be divided in two parts, 100202000 and 20001, that added together give a palindrome (100222001).

The spelling of 10020200020001 in words is "ten trillion, twenty billion, two hundred million, twenty thousand, one".