220111011212 has 6 divisors (see below), whose sum is σ = 385194269628. Its totient is φ = 110055505604.

The previous prime is 220111011187. The next prime is 220111011221. The reversal of 220111011212 is 212110111022.

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 as a sum of consecutive naturals, namely, 27513876398 + ... + 27513876405.

It is an arithmetic number, because the mean of its divisors is an integer number (64199044938).

Almost surely, 2^220111011212 is an apocalyptic number.

It is an amenable number.

220111011212 is a deficient number, since it is larger than the sum of its proper divisors (165083258416).

220111011212 is a wasteful number, since it uses less digits than its factorization.

220111011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55027752807 (or 55027752805 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220111011212 its reverse (212110111022), we get a palindrome (432221122234).

The spelling of 220111011212 in words is "two hundred twenty billion, one hundred eleven million, eleven thousand, two hundred twelve".