122020002001 has 2 divisors, whose sum is σ = 122020002002. Its totient is φ = 122020002000.

The previous prime is 122020001977. The next prime is 122020002019. The reversal of 122020002001 is 100200020221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107757910225 + 14262091776 = 328265^2 + 119424^2 .

It is a cyclic number.

It is not a de Polignac number, because 122020002001 - 2¹¹ = 122019999953 is a prime.

It is not a weakly prime, because it can be changed into another prime (122020002101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010001000 + 61010001001.

It is an arithmetic number, because the mean of its divisors is an integer number (61010001001).

Almost surely, 2^122020002001 is an apocalyptic number.

It is an amenable number.

122020002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

122020002001 is an equidigital number, since it uses as much as digits as its factorization.

122020002001 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 10.

Adding to 122020002001 its reverse (100200020221), we get a palindrome (222220022222).

The spelling of 122020002001 in words is "one hundred twenty-two billion, twenty million, two thousand, one".