20032211200 has 108 divisors (see below), whose sum is σ = 49859674228. Its totient is φ = 7968153600.

The previous prime is 20032211183. The next prime is 20032211203. The reversal of 20032211200 is 211223002.

It can be written as a sum of positive squares in 6 ways, for example, as 9755117824 + 10277093376 = 98768^2 + 101376^2 .

It is a super-2 number, since 2×20032211200² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20032211203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1149754 + ... + 1167046.

Almost surely, 2^20032211200 is an apocalyptic number.

20032211200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20032211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24929837114).

20032211200 is an abundant number, since it is smaller than the sum of its proper divisors (29827463028).

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

20032211200 is a wasteful number, since it uses less digits than its factorization.

20032211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17500 (or 17481 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20032211200 its reverse (211223002), we get a palindrome (20243434202).

The spelling of 20032211200 in words is "twenty billion, thirty-two million, two hundred eleven thousand, two hundred".