11001222101 has 2 divisors, whose sum is σ = 11001222102. Its totient is φ = 11001222100.

The previous prime is 11001222097. The next prime is 11001222107. The reversal of 11001222101 is 10122210011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7552479025 + 3448743076 = 86905^2 + 58726^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001222101 - 2² = 11001222097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11001222107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500611050 + 5500611051.

It is an arithmetic number, because the mean of its divisors is an integer number (5500611051).

Almost surely, 2^11001222101 is an apocalyptic number.

It is an amenable number.

11001222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001222101 is an equidigital number, since it uses as much as digits as its factorization.

11001222101 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 11001222101 its reverse (10122210011), we get a palindrome (21123432112).

The spelling of 11001222101 in words is "eleven billion, one million, two hundred twenty-two thousand, one hundred one".