11021221022129 has 2 divisors, whose sum is σ = 11021221022130. Its totient is φ = 11021221022128.

The previous prime is 11021221022111. The next prime is 11021221022131. The reversal of 11021221022129 is 92122012212011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9648621325729 + 1372599696400 = 3106223^2 + 1171580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021221022129 is a prime.

Together with 11021221022131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11021221022098 and 11021221022107.

It is not a weakly prime, because it can be changed into another prime (11021221022729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510610511064 + 5510610511065.

It is an arithmetic number, because the mean of its divisors is an integer number (5510610511065).

Almost surely, 2^{11021221022129} is an apocalyptic number.

It is an amenable number.

11021221022129 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021221022129 is an equidigital number, since it uses as much as digits as its factorization.

11021221022129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 11021221022129 in words is "eleven trillion, twenty-one billion, two hundred twenty-one million, twenty-two thousand, one hundred twenty-nine".