202012001 has 2 divisors, whose sum is σ = 202012002. Its totient is φ = 202012000.

The previous prime is 202011977. The next prime is 202012007. The reversal of 202012001 is 100210202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142181776 + 59830225 = 11924^2 + 7735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202012001 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202012001.

It is not a weakly prime, because it can be changed into another prime (202012007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101006000 + 101006001.

It is an arithmetic number, because the mean of its divisors is an integer number (101006001).

Almost surely, 2^202012001 is an apocalyptic number.

It is an amenable number.

202012001 is a deficient number, since it is larger than the sum of its proper divisors (1).

202012001 is an equidigital number, since it uses as much as digits as its factorization.

202012001 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.

The square root of 202012001 is about 14213.0925909881. The cubic root of 202012001 is about 586.7580503236.

Adding to 202012001 its reverse (100210202), we get a palindrome (302222203).

The spelling of 202012001 in words is "two hundred two million, twelve thousand, one".