22011212202211 has 4 divisors (see below), whose sum is σ = 22059376780792. Its totient is φ = 21963047623632.

The previous prime is 22011212202197. The next prime is 22011212202229. The reversal of 22011212202211 is 11220221211022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22011212202211 - 2⁵ = 22011212202179 is a prime.

It is a super-2 number, since 2×22011212202211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011212212211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24082288605 + ... + 24082289518.

It is an arithmetic number, because the mean of its divisors is an integer number (5514844195198).

Almost surely, 2^{22011212202211} is an apocalyptic number.

22011212202211 is a deficient number, since it is larger than the sum of its proper divisors (48164578581).

22011212202211 is an equidigital number, since it uses as much as digits as its factorization.

22011212202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48164578580.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22011212202211 its reverse (11220221211022), we get a palindrome (33231433413233).

The spelling of 22011212202211 in words is "twenty-two trillion, eleven billion, two hundred twelve million, two hundred two thousand, two hundred eleven".