202112043100 has 72 divisors (see below), whose sum is σ = 479502466128. Its totient is φ = 73334284800.

The previous prime is 202112043097. The next prime is 202112043101. The reversal of 202112043100 is 1340211202.

It is a super-2 number, since 2×202112043100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112043101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 301674 + ... + 703726.

It is an arithmetic number, because the mean of its divisors is an integer number (6659756474).

Almost surely, 2^202112043100 is an apocalyptic number.

202112043100 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 202112043100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239751233064).

202112043100 is an abundant number, since it is smaller than the sum of its proper divisors (277390423028).

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

202112043100 is a wasteful number, since it uses less digits than its factorization.

202112043100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402535 (or 402528 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 202112043100 its reverse (1340211202), we get a palindrome (203452254302).

The spelling of 202112043100 in words is "two hundred two billion, one hundred twelve million, forty-three thousand, one hundred".