11020021121201 has 2 divisors, whose sum is σ = 11020021121202. Its totient is φ = 11020021121200.

The previous prime is 11020021121189. The next prime is 11020021121203. The reversal of 11020021121201 is 10212112002011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11016823105600 + 3198015601 = 3319160^2 + 56551^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020021121201 - 2¹⁴ = 11020021104817 is a prime.

It is a super-2 number, since 2×11020021121201² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 11020021121203, 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 (11020021121203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510010560600 + 5510010560601.

It is an arithmetic number, because the mean of its divisors is an integer number (5510010560601).

Almost surely, 2^{11020021121201} is an apocalyptic number.

It is an amenable number.

11020021121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020021121201 is an equidigital number, since it uses as much as digits as its factorization.

11020021121201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11020021121201 its reverse (10212112002011), we get a palindrome (21232133123212).

The spelling of 11020021121201 in words is "eleven trillion, twenty billion, twenty-one million, one hundred twenty-one thousand, two hundred one".