221122210120120 has 32 divisors (see below), whose sum is σ = 498277658113920. Its totient is φ = 88315073320320.

The previous prime is 221122210120109. The next prime is 221122210120127. The reversal of 221122210120120 is 21021012221122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122210120127) 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 in 7 ways as a sum of consecutive naturals, for example, 4181558472 + ... + 4181611351.

It is an arithmetic number, because the mean of its divisors is an integer number (15571176816060).

Almost surely, 2^{221122210120120} is an apocalyptic number.

221122210120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221122210120120 is an abundant number, since it is smaller than the sum of its proper divisors (277155447993800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221122210120120 is a wasteful number, since it uses less digits than its factorization.

221122210120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8363170495 (or 8363170491 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221122210120120 its reverse (21021012221122), we get a palindrome (242143222341242).

The spelling of 221122210120120 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, two hundred ten million, one hundred twenty thousand, one hundred twenty".