211120122222222 has 32 divisors (see below), whose sum is σ = 422807451816960. Its totient is φ = 70278900847680.

The previous prime is 211120122222137. The next prime is 211120122222257. The reversal of 211120122222222 is 222222221021112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211120122222192 and 211120122222201.

It is a congruent number.

It is an unprimeable number.

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, 6105522 + ... + 21436362.

It is an arithmetic number, because the mean of its divisors is an integer number (13212732869280).

Almost surely, 2^{211120122222222} is an apocalyptic number.

211120122222222 is an abundant number, since it is smaller than the sum of its proper divisors (211687329594738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211120122222222 is a wasteful number, since it uses less digits than its factorization.

211120122222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15333928.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 211120122222222 its reverse (222222221021112), we get a palindrome (433342343243334).

The spelling of 211120122222222 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".