20121112022222 has 32 divisors (see below), whose sum is σ = 30478542962688. Its totient is φ = 9962152200000.

The previous prime is 20121112022197. The next prime is 20121112022273. The reversal of 20121112022222 is 22222021112102.

It is a junction number, because it is equal to n+sod(n) for n = 20121112022194 and 20121112022203.

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, 106281347 + ... + 106470497.

It is an arithmetic number, because the mean of its divisors is an integer number (952454467584).

Almost surely, 2^{20121112022222} is an apocalyptic number.

20121112022222 is a deficient number, since it is larger than the sum of its proper divisors (10357430940466).

20121112022222 is a wasteful number, since it uses less digits than its factorization.

20121112022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190616.

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

Adding to 20121112022222 its reverse (22222021112102), we get a palindrome (42343133134324).

The spelling of 20121112022222 in words is "twenty trillion, one hundred twenty-one billion, one hundred twelve million, twenty-two thousand, two hundred twenty-two".