202421102200 has 96 divisors (see below), whose sum is σ = 483741694800. Its totient is φ = 78716067840.

The previous prime is 202421102183. The next prime is 202421102243. The reversal of 202421102200 is 2201124202.

It is a congruent number.

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, 9661336 + ... + 9682264.

Almost surely, 2^202421102200 is an apocalyptic number.

202421102200 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 202421102200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241870847400).

202421102200 is an abundant number, since it is smaller than the sum of its proper divisors (281320592600).

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

202421102200 is a wasteful number, since it uses less digits than its factorization.

202421102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22289 (or 22280 counting only the distinct ones).

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

Adding to 202421102200 its reverse (2201124202), we get a palindrome (204622226402).

The spelling of 202421102200 in words is "two hundred two billion, four hundred twenty-one million, one hundred two thousand, two hundred".