221222130100120 has 16 divisors (see below), whose sum is σ = 497749792725360. Its totient is φ = 88488852040032.

The previous prime is 221222130100079. The next prime is 221222130100157. The reversal of 221222130100120 is 21001031222122.

221222130100120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2765276626212 + ... + 2765276626291.

It is an arithmetic number, because the mean of its divisors is an integer number (31109362045335).

Almost surely, 2^{221222130100120} is an apocalyptic number.

221222130100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221222130100120 is an abundant number, since it is smaller than the sum of its proper divisors (276527662625240).

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

221222130100120 is a wasteful number, since it uses less digits than its factorization.

221222130100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5530553252514 (or 5530553252510 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221222130100120 its reverse (21001031222122), we get a palindrome (242223161322242).

The spelling of 221222130100120 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, one hundred thirty million, one hundred thousand, one hundred twenty".