122221445144 has 32 divisors (see below), whose sum is σ = 231043088640. Its totient is φ = 60611220000.

The previous prime is 122221445123. The next prime is 122221445167. The reversal of 122221445144 is 441544122221.

It is a self number, because there is not a number n which added to its sum of digits gives 122221445144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698069 + ... + 855419.

It is an arithmetic number, because the mean of its divisors is an integer number (7220096520).

Almost surely, 2^122221445144 is an apocalyptic number.

It is an amenable number.

122221445144 is a deficient number, since it is larger than the sum of its proper divisors (108821643496).

122221445144 is a wasteful number, since it uses less digits than its factorization.

122221445144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158151 (or 158147 counting only the distinct ones).

The product of its digits is 20480, while the sum is 32.

Adding to 122221445144 its reverse (441544122221), we get a palindrome (563765567365).

The spelling of 122221445144 in words is "one hundred twenty-two billion, two hundred twenty-one million, four hundred forty-five thousand, one hundred forty-four".