11222101001 has 2 divisors, whose sum is σ = 11222101002. Its totient is φ = 11222101000.

The previous prime is 11222100941. The next prime is 11222101039. The reversal of 11222101001 is 10010122211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8077695376 + 3144405625 = 89876^2 + 56075^2 .

It is an emirp because it is prime and its reverse (10010122211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11222101001 - 2²² = 11217906697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11222601001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611050500 + 5611050501.

It is an arithmetic number, because the mean of its divisors is an integer number (5611050501).

Almost surely, 2^11222101001 is an apocalyptic number.

It is an amenable number.

11222101001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222101001 is an equidigital number, since it uses as much as digits as its factorization.

11222101001 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 11.

Adding to 11222101001 its reverse (10010122211), we get a palindrome (21232223212).

It can be divided in two parts, 1122210 and 1001, that added together give a palindrome (1123211).

The spelling of 11222101001 in words is "eleven billion, two hundred twenty-two million, one hundred one thousand, one".