22210001221211 has 2 divisors, whose sum is σ = 22210001221212. Its totient is φ = 22210001221210.

The previous prime is 22210001221193. The next prime is 22210001221273. The reversal of 22210001221211 is 11212210001222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22210001221211 - 2⁶ = 22210001221147 is a prime.

It is a super-2 number, since 2×22210001221211² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22210001221211.

It is not a weakly prime, because it can be changed into another prime (22210001226211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105000610605 + 11105000610606.

It is an arithmetic number, because the mean of its divisors is an integer number (11105000610606).

Almost surely, 2^{22210001221211} is an apocalyptic number.

22210001221211 is a deficient number, since it is larger than the sum of its proper divisors (1).

22210001221211 is an equidigital number, since it uses as much as digits as its factorization.

22210001221211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22210001221211 its reverse (11212210001222), we get a palindrome (33422211222433).

The spelling of 22210001221211 in words is "twenty-two trillion, two hundred ten billion, one million, two hundred twenty-one thousand, two hundred eleven".