11021011121201 has 2 divisors, whose sum is σ = 11021011121202. Its totient is φ = 11021011121200.

The previous prime is 11021011121173. The next prime is 11021011121203. The reversal of 11021011121201 is 10212111012011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10902206818801 + 118804302400 = 3301849^2 + 344680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021011121201 is a prime.

It is a super-2 number, since 2×11021011121201² (a number of 27 digits) contains 22 as substring.

Together with 11021011121203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11021011121203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510505560600 + 5510505560601.

It is an arithmetic number, because the mean of its divisors is an integer number (5510505560601).

Almost surely, 2^{11021011121201} is an apocalyptic number.

It is an amenable number.

11021011121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021011121201 is an equidigital number, since it uses as much as digits as its factorization.

11021011121201 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 14.

Adding to 11021011121201 its reverse (10212111012011), we get a palindrome (21233122133212).

The spelling of 11021011121201 in words is "eleven trillion, twenty-one billion, eleven million, one hundred twenty-one thousand, two hundred one".