20020200112001 has 2 divisors, whose sum is σ = 20020200112002. Its totient is φ = 20020200112000.

The previous prime is 20020200111979. The next prime is 20020200112043. The reversal of 20020200112001 is 10021100202002.

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., 19119980569600 + 900219542401 = 4372640^2 + 948799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020200112001 is a prime.

It is not a weakly prime, because it can be changed into another prime (20020200112061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010100056000 + 10010100056001.

It is an arithmetic number, because the mean of its divisors is an integer number (10010100056001).

Almost surely, 2^{20020200112001} is an apocalyptic number.

It is an amenable number.

20020200112001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020200112001 is an equidigital number, since it uses as much as digits as its factorization.

20020200112001 is an evil number, because the sum of its binary digits is even.

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

Adding to 20020200112001 its reverse (10021100202002), we get a palindrome (30041300314003).

Subtracting from 20020200112001 its reverse (10021100202002), we obtain a palindrome (9999099909999).

The spelling of 20020200112001 in words is "twenty trillion, twenty billion, two hundred million, one hundred twelve thousand, one".