201231102200 has 24 divisors (see below), whose sum is σ = 467862313080. Its totient is φ = 80492440800.

The previous prime is 201231102199. The next prime is 201231102277. The reversal of 201231102200 is 2201132102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503077556 + ... + 503077955.

It is an arithmetic number, because the mean of its divisors is an integer number (19494263045).

Almost surely, 2^201231102200 is an apocalyptic number.

201231102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201231102200 is an abundant number, since it is smaller than the sum of its proper divisors (266631210880).

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

201231102200 is a wasteful number, since it uses less digits than its factorization.

201231102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006155527 (or 1006155518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 201231102200 its reverse (2201132102), we get a palindrome (203432234302).

The spelling of 201231102200 in words is "two hundred one billion, two hundred thirty-one million, one hundred two thousand, two hundred".