202221012200 has 48 divisors (see below), whose sum is σ = 472550563980. Its totient is φ = 80477788160.

The previous prime is 202221012193. The next prime is 202221012239. The reversal of 202221012200 is 2210122202.

It can be written as a sum of positive squares in 6 ways, for example, as 181914192196 + 20306820004 = 426514^2 + 142502^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2526857 + ... + 2605656.

Almost surely, 2^202221012200 is an apocalyptic number.

202221012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221012200 is an abundant number, since it is smaller than the sum of its proper divisors (270329551780).

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

202221012200 is a wasteful number, since it uses less digits than its factorization.

202221012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132726 (or 5132717 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202221012200 its reverse (2210122202), we get a palindrome (204431134402).

The spelling of 202221012200 in words is "two hundred two billion, two hundred twenty-one million, twelve thousand, two hundred".