20221201220200 has 24 divisors (see below), whose sum is σ = 47014292837430. Its totient is φ = 8088480488000.

The previous prime is 20221201220177. The next prime is 20221201220243. The reversal of 20221201220200 is 202210212202.

It can be written as a sum of positive squares in 3 ways, for example, as 12077974214244 + 8143227005956 = 3475338^2 + 2853634^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50553002851 + ... + 50553003250.

Almost surely, 2^{20221201220200} is an apocalyptic number.

20221201220200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221201220200 is an abundant number, since it is smaller than the sum of its proper divisors (26793091617230).

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

20221201220200 is a wasteful number, since it uses less digits than its factorization.

20221201220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101106006117 (or 101106006108 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20221201220200 its reverse (202210212202), we get a palindrome (20423411432402).

The spelling of 20221201220200 in words is "twenty trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty thousand, two hundred".