20211210200 has 48 divisors (see below), whose sum is σ = 47008631880. Its totient is φ = 8081461760.

The previous prime is 20211210199. The next prime is 20211210221. The reversal of 20211210200 is 201211202.

It is a happy number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 561959 + ... + 596841.

Almost surely, 2^20211210200 is an apocalyptic number.

20211210200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211210200 is an abundant number, since it is smaller than the sum of its proper divisors (26797421680).

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

20211210200 is a wasteful number, since it uses less digits than its factorization.

20211210200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37796 (or 37787 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20211210200 its reverse (201211202), we get a palindrome (20412421402).

The spelling of 20211210200 in words is "twenty billion, two hundred eleven million, two hundred ten thousand, two hundred".