201001122200 has 24 divisors (see below), whose sum is σ = 467327609580. Its totient is φ = 80400448800.

The previous prime is 201001122193. The next prime is 201001122233. The reversal of 201001122200 is 2221100102.

It is a happy number.

It is a super-2 number, since 2×201001122200² (a number of 23 digits) contains 22 as substring.

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, 502502606 + ... + 502503005.

Almost surely, 2^201001122200 is an apocalyptic number.

201001122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201001122200 is an abundant number, since it is smaller than the sum of its proper divisors (266326487380).

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

201001122200 is a wasteful number, since it uses less digits than its factorization.

201001122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005005627 (or 1005005618 counting only the distinct ones).

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

Adding to 201001122200 its reverse (2221100102), we get a palindrome (203222222302).

The spelling of 201001122200 in words is "two hundred one billion, one million, one hundred twenty-two thousand, two hundred".