11021000221057 has 2 divisors, whose sum is σ = 11021000221058. Its totient is φ = 11021000221056.

The previous prime is 11021000220983. The next prime is 11021000221079. The reversal of 11021000221057 is 75012200012011.

It is an a-pointer prime, because the next prime (11021000221079) can be obtained adding 11021000221057 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10764705083521 + 256295137536 = 3280961^2 + 506256^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021000221057 - 2¹⁹ = 11020999696769 is a prime.

It is not a weakly prime, because it can be changed into another prime (11021000221757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510500110528 + 5510500110529.

It is an arithmetic number, because the mean of its divisors is an integer number (5510500110529).

Almost surely, 2^{11021000221057} is an apocalyptic number.

It is an amenable number.

11021000221057 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021000221057 is an equidigital number, since it uses as much as digits as its factorization.

11021000221057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 11021000221057 its reverse (75012200012011), we get a palindrome (86033200233068).

The spelling of 11021000221057 in words is "eleven trillion, twenty-one billion, two hundred twenty-one thousand, fifty-seven".