2221231112122 has 32 divisors (see below), whose sum is σ = 3883149204480. Its totient is φ = 942234709680.

The previous prime is 2221231112117. The next prime is 2221231112143. The reversal of 2221231112122 is 2212111321222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2221231112093 and 2221231112102.

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, 39628338 + ... + 39684349.

It is an arithmetic number, because the mean of its divisors is an integer number (121348412640).

Almost surely, 2^{2221231112122} is an apocalyptic number.

2221231112122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221231112122 is a deficient number, since it is larger than the sum of its proper divisors (1661918092358).

2221231112122 is a wasteful number, since it uses less digits than its factorization.

2221231112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79312786.

The product of its digits is 384, while the sum is 22.

Adding to 2221231112122 its reverse (2212111321222), we get a palindrome (4433342433344).

The spelling of 2221231112122 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-one million, one hundred twelve thousand, one hundred twenty-two".