11111202210211 has 2 divisors, whose sum is σ = 11111202210212. Its totient is φ = 11111202210210.

The previous prime is 11111202210149. The next prime is 11111202210217. The reversal of 11111202210211 is 11201220211111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111202210211 - 2¹³ = 11111202202019 is a prime.

It is a super-2 number, since 2×11111202210211² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11111202210217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555601105105 + 5555601105106.

It is an arithmetic number, because the mean of its divisors is an integer number (5555601105106).

Almost surely, 2^{11111202210211} is an apocalyptic number.

11111202210211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111202210211 is an equidigital number, since it uses as much as digits as its factorization.

11111202210211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11111202210211 its reverse (11201220211111), we get a palindrome (22312422421322).

Subtracting 11111202210211 from its reverse (11201220211111), we obtain a square (90018000900 = 300030²).

The spelling of 11111202210211 in words is "eleven trillion, one hundred eleven billion, two hundred two million, two hundred ten thousand, two hundred eleven".