221002210120120 has 128 divisors (see below), whose sum is σ = 614934379584000. Its totient is φ = 70278214740480.

The previous prime is 221002210120033. The next prime is 221002210120201. The reversal of 221002210120120 is 21021012200122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221002210120094 and 221002210120103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1016647900 + ... + 1016865259.

It is an arithmetic number, because the mean of its divisors is an integer number (4804174840500).

Almost surely, 2^{221002210120120} is an apocalyptic number.

221002210120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002210120120 is an abundant number, since it is smaller than the sum of its proper divisors (393932169463880).

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

221002210120120 is a wasteful number, since it uses less digits than its factorization.

221002210120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033513213 (or 2033513209 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221002210120120 its reverse (21021012200122), we get a palindrome (242023222320242).

The spelling of 221002210120120 in words is "two hundred twenty-one trillion, two billion, two hundred ten million, one hundred twenty thousand, one hundred twenty".