1101010121201 has 2 divisors, whose sum is σ = 1101010121202. Its totient is φ = 1101010121200.

The previous prime is 1101010121179. The next prime is 1101010121203. The reversal of 1101010121201 is 1021210101011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617519358976 + 483490762225 = 785824^2 + 695335^2 .

It is an emirp because it is prime and its reverse (1021210101011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101010121201 - 2³⁴ = 1083830252017 is a prime.

It is a Sophie Germain prime.

Together with 1101010121203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1101010121203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550505060600 + 550505060601.

It is an arithmetic number, because the mean of its divisors is an integer number (550505060601).

Almost surely, 2^{1101010121201} is an apocalyptic number.

It is an amenable number.

1101010121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101010121201 is an equidigital number, since it uses as much as digits as its factorization.

1101010121201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1101010121201 its reverse (1021210101011), we get a palindrome (2122220222212).

The spelling of 1101010121201 in words is "one trillion, one hundred one billion, ten million, one hundred twenty-one thousand, two hundred one".