20000200121220 has 96 divisors (see below), whose sum is σ = 61137560365056. Its totient is φ = 4844879395200.

The previous prime is 20000200121219. The next prime is 20000200121233. The reversal of 20000200121220 is 2212100200002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20000200121196 and 20000200121205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10542166 + ... + 12293805.

It is an arithmetic number, because the mean of its divisors is an integer number (636849587136).

Almost surely, 2^{20000200121220} is an apocalyptic number.

20000200121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000200121220 is an abundant number, since it is smaller than the sum of its proper divisors (41137360243836).

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

20000200121220 is a wasteful number, since it uses less digits than its factorization.

20000200121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22837321 (or 22837319 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20000200121220 its reverse (2212100200002), we get a palindrome (22212300321222).

The spelling of 20000200121220 in words is "twenty trillion, two hundred million, one hundred twenty-one thousand, two hundred twenty".