221022120022112 has 12 divisors (see below), whose sum is σ = 435137298793596. Its totient is φ = 110511060011040.

The previous prime is 221022120022111. The next prime is 221022120022213. The reversal of 221022120022112 is 211220021220122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022120022111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3453470625314 + ... + 3453470625377.

It is an arithmetic number, because the mean of its divisors is an integer number (36261441566133).

Almost surely, 2^{221022120022112} is an apocalyptic number.

It is an amenable number.

221022120022112 is a deficient number, since it is larger than the sum of its proper divisors (214115178771484).

221022120022112 is an equidigital number, since it uses as much as digits as its factorization.

221022120022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6906941250701 (or 6906941250693 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221022120022112 its reverse (211220021220122), we get a palindrome (432242141242234).

The spelling of 221022120022112 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred twenty million, twenty-two thousand, one hundred twelve".