20221201200 has 120 divisors (see below), whose sum is σ = 67008992400. Its totient is φ = 5206369280.

The previous prime is 20221201183. The next prime is 20221201211. The reversal of 20221201200 is 210212202.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255735 + ... + 325334.

It is an arithmetic number, because the mean of its divisors is an integer number (558408270).

Almost surely, 2^20221201200 is an apocalyptic number.

20221201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221201200 is an abundant number, since it is smaller than the sum of its proper divisors (46787791200).

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

20221201200 is a wasteful number, since it uses less digits than its factorization.

20221201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581119 (or 581108 counting only the distinct ones).

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

Adding to 20221201200 its reverse (210212202), we get a palindrome (20431413402).

The spelling of 20221201200 in words is "twenty billion, two hundred twenty-one million, two hundred one thousand, two hundred".