211222221110011 has 16 divisors (see below), whose sum is σ = 228969946022400. Its totient is φ = 194070849211008.

The previous prime is 211222221109993. The next prime is 211222221110111. The reversal of 211222221110011 is 110011122222112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 211222221110011 - 2⁴⁵ = 176037849021179 is a prime.

It is a super-2 number, since 2×211222221110011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211222221110111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75515671 + ... + 78262768.

It is an arithmetic number, because the mean of its divisors is an integer number (14310621626400).

Almost surely, 2^{211222221110011} is an apocalyptic number.

211222221110011 is a deficient number, since it is larger than the sum of its proper divisors (17747724912389).

211222221110011 is a wasteful number, since it uses less digits than its factorization.

211222221110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153780378.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211222221110011 its reverse (110011122222112), we get a palindrome (321233343332123).

The spelling of 211222221110011 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred ten thousand, eleven".