11021221093 has 2 divisors, whose sum is σ = 11021221094. Its totient is φ = 11021221092.

The previous prime is 11021221061. The next prime is 11021221139. The reversal of 11021221093 is 39012212011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9591851844 + 1429369249 = 97938^2 + 37807^2 .

It is an emirp because it is prime and its reverse (39012212011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11021221093 - 2⁵ = 11021221061 is a prime.

It is a super-2 number, since 2×11021221093² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021221693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510610546 + 5510610547.

It is an arithmetic number, because the mean of its divisors is an integer number (5510610547).

Almost surely, 2^11021221093 is an apocalyptic number.

It is an amenable number.

11021221093 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021221093 is an equidigital number, since it uses as much as digits as its factorization.

11021221093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 11021221093 in words is "eleven billion, twenty-one million, two hundred twenty-one thousand, ninety-three".