201001200120200 has 48 divisors (see below), whose sum is σ = 467329639213860. Its totient is φ = 80400161952000.

The previous prime is 201001200120169. The next prime is 201001200120211. The reversal of 201001200120200 is 2021002100102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 73006053632164 + 127995146488036 = 8544358^2 + 11313494^2 .

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, 52399730 + ... + 56104670.

Almost surely, 2^{201001200120200} is an apocalyptic number.

201001200120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201001200120200 is an abundant number, since it is smaller than the sum of its proper divisors (266328439093660).

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

201001200120200 is a wasteful number, since it uses less digits than its factorization.

201001200120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976218 (or 3976209 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201001200120200 its reverse (2021002100102), we get a palindrome (203022202220302).

The spelling of 201001200120200 in words is "two hundred one trillion, one billion, two hundred million, one hundred twenty thousand, two hundred".