221202130000 has 200 divisors, whose sum is σ = 568559502720. Its totient is φ = 83055360000.

The previous prime is 221202129991. The next prime is 221202130001. The reversal of 221202130000 is 31202122.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221202130001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 73268491 + ... + 73271509.

Almost surely, 2^221202130000 is an apocalyptic number.

221202130000 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 221202130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284279751360).

221202130000 is an abundant number, since it is smaller than the sum of its proper divisors (347357372720).

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

221202130000 is a wasteful number, since it uses less digits than its factorization.

221202130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495 (or 3474 counting only the distinct ones).

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

Adding to 221202130000 its reverse (31202122), we get a palindrome (221233332122).

The spelling of 221202130000 in words is "two hundred twenty-one billion, two hundred two million, one hundred thirty thousand".