201210011121401 has 2 divisors, whose sum is σ = 201210011121402. Its totient is φ = 201210011121400.

The previous prime is 201210011121389. The next prime is 201210011121421. The reversal of 201210011121401 is 104121110012102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107365842339001 + 93844168782400 = 10361749^2 + 9687320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201210011121401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201210011121401.

It is not a weakly prime, because it can be changed into another prime (201210011121421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605005560700 + 100605005560701.

It is an arithmetic number, because the mean of its divisors is an integer number (100605005560701).

Almost surely, 2^{201210011121401} is an apocalyptic number.

It is an amenable number.

201210011121401 is a deficient number, since it is larger than the sum of its proper divisors (1).

201210011121401 is an equidigital number, since it uses as much as digits as its factorization.

201210011121401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201210011121401 its reverse (104121110012102), we get a palindrome (305331121133503).

The spelling of 201210011121401 in words is "two hundred one trillion, two hundred ten billion, eleven million, one hundred twenty-one thousand, four hundred one".