1210101022001 has 2 divisors, whose sum is σ = 1210101022002. Its totient is φ = 1210101022000.

The previous prime is 1210101021989. The next prime is 1210101022153. The reversal of 1210101022001 is 1002201010121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1208733131776 + 1367890225 = 1099424^2 + 36985^2 .

It is an emirp because it is prime and its reverse (1002201010121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210101022001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210701022001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605050511000 + 605050511001.

It is an arithmetic number, because the mean of its divisors is an integer number (605050511001).

Almost surely, 2^{1210101022001} is an apocalyptic number.

It is an amenable number.

1210101022001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210101022001 is an equidigital number, since it uses as much as digits as its factorization.

1210101022001 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 11.

Adding to 1210101022001 its reverse (1002201010121), we get a palindrome (2212302032122).

The spelling of 1210101022001 in words is "one trillion, two hundred ten billion, one hundred one million, twenty-two thousand, one".