221201022022120 has 64 divisors (see below), whose sum is σ = 580410844992000. Its totient is φ = 75840350402880.

The previous prime is 221201022022091. The next prime is 221201022022129. The reversal of 221201022022120 is 21220220102122.

It is not an unprimeable number, because it can be changed into a prime (221201022022129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8061248016 + ... + 8061275455.

It is an arithmetic number, because the mean of its divisors is an integer number (9068919453000).

Almost surely, 2^{221201022022120} is an apocalyptic number.

221201022022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221201022022120 is an abundant number, since it is smaller than the sum of its proper divisors (359209822969880).

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

221201022022120 is a wasteful number, since it uses less digits than its factorization.

221201022022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16122523503 (or 16122523485 counting only the distinct ones).

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

Adding to 221201022022120 its reverse (21220220102122), we get a palindrome (242421242124242).

The spelling of 221201022022120 in words is "two hundred twenty-one trillion, two hundred one billion, twenty-two million, twenty-two thousand, one hundred twenty".