221020222210120 has 64 divisors (see below), whose sum is σ = 502473403152000. Its totient is φ = 87491636863488.

The previous prime is 221020222210091. The next prime is 221020222210159. The reversal of 221020222210120 is 21012222020122.

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 15 ways as a sum of consecutive naturals, for example, 61761060 + ... + 65241619.

It is an arithmetic number, because the mean of its divisors is an integer number (7851146924250).

Almost surely, 2^{221020222210120} is an apocalyptic number.

221020222210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221020222210120 is an abundant number, since it is smaller than the sum of its proper divisors (281453180941880).

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

221020222210120 is a wasteful number, since it uses less digits than its factorization.

221020222210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127003142 (or 127003138 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221020222210120 its reverse (21012222020122), we get a palindrome (242032444230242).

The spelling of 221020222210120 in words is "two hundred twenty-one trillion, twenty billion, two hundred twenty-two million, two hundred ten thousand, one hundred twenty".