11212202201 has 2 divisors, whose sum is σ = 11212202202. Its totient is φ = 11212202200.

The previous prime is 11212202143. The next prime is 11212202207. The reversal of 11212202201 is 10220221211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7039042201 + 4173160000 = 83899^2 + 64600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11212202201 is a prime.

It is a super-2 number, since 2×11212202201² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11212202207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606101100 + 5606101101.

It is an arithmetic number, because the mean of its divisors is an integer number (5606101101).

Almost surely, 2^11212202201 is an apocalyptic number.

It is an amenable number.

11212202201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212202201 is an equidigital number, since it uses as much as digits as its factorization.

11212202201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11212202201 its reverse (10220221211), we get a palindrome (21432423412).

It can be divided in two parts, 11 and 212202201, that added together give a palindrome (212202212).

The spelling of 11212202201 in words is "eleven billion, two hundred twelve million, two hundred two thousand, two hundred one".