201120012001 has 2 divisors, whose sum is σ = 201120012002. Its totient is φ = 201120012000.

The previous prime is 201120011987. The next prime is 201120012007. The reversal of 201120012001 is 100210021102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147099096225 + 54020915776 = 383535^2 + 232424^2 .

It is a cyclic number.

It is not a de Polignac number, because 201120012001 - 2²³ = 201111623393 is a prime.

It is not a weakly prime, because it can be changed into another prime (201120012007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560006000 + 100560006001.

It is an arithmetic number, because the mean of its divisors is an integer number (100560006001).

Almost surely, 2^201120012001 is an apocalyptic number.

It is an amenable number.

201120012001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201120012001 is an equidigital number, since it uses as much as digits as its factorization.

201120012001 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 10.

Adding to 201120012001 its reverse (100210021102), we get a palindrome (301330033103).

The spelling of 201120012001 in words is "two hundred one billion, one hundred twenty million, twelve thousand, one".