20122201003220 has 24 divisors (see below), whose sum is σ = 42272818698600. Its totient is φ = 8045795336192.

The previous prime is 20122201003211. The next prime is 20122201003259. The reversal of 20122201003220 is 2230010222102.

It can be written as a sum of positive squares in 4 ways, for example, as 6913933678096 + 13208267325124 = 2629436^2 + 3634318^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 192763085 + ... + 192867444.

It is an arithmetic number, because the mean of its divisors is an integer number (1761367445775).

Almost surely, 2^{20122201003220} is an apocalyptic number.

20122201003220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122201003220 is an abundant number, since it is smaller than the sum of its proper divisors (22150617695380).

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

20122201003220 is a wasteful number, since it uses less digits than its factorization.

20122201003220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385633147 (or 385633145 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20122201003220 its reverse (2230010222102), we get a palindrome (22352211225322).

The spelling of 20122201003220 in words is "twenty trillion, one hundred twenty-two billion, two hundred one million, three thousand, two hundred twenty".