221122111100120 has 32 divisors (see below), whose sum is σ = 519156260845920. Its totient is φ = 84603242507520.

The previous prime is 221122111100119. The next prime is 221122111100167. The reversal of 221122111100120 is 21001111221122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120175059461 + ... + 120175061300.

It is an arithmetic number, because the mean of its divisors is an integer number (16223633151435).

Almost surely, 2^{221122111100120} is an apocalyptic number.

221122111100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221122111100120 is an abundant number, since it is smaller than the sum of its proper divisors (298034149745800).

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

221122111100120 is a wasteful number, since it uses less digits than its factorization.

221122111100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240350120795 (or 240350120791 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221122111100120 its reverse (21001111221122), we get a palindrome (242123222321242).

The spelling of 221122111100120 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one hundred eleven million, one hundred thousand, one hundred twenty".