201212021222200 has 24 divisors (see below), whose sum is σ = 467817949342080. Its totient is φ = 80484808488800.

The previous prime is 201212021222167. The next prime is 201212021222209. The reversal of 201212021222200 is 2222120212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212021222209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503030052856 + ... + 503030053255.

It is an arithmetic number, because the mean of its divisors is an integer number (19492414555920).

Almost surely, 2^{201212021222200} is an apocalyptic number.

201212021222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201212021222200 is an abundant number, since it is smaller than the sum of its proper divisors (266605928119880).

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

201212021222200 is a wasteful number, since it uses less digits than its factorization.

201212021222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006060106127 (or 1006060106118 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201212021222200 its reverse (2222120212102), we get a palindrome (203434141434302).

The spelling of 201212021222200 in words is "two hundred one trillion, two hundred twelve billion, twenty-one million, two hundred twenty-two thousand, two hundred".