201001102200 has 72 divisors (see below), whose sum is σ = 675028707600. Its totient is φ = 53600293440.

The previous prime is 201001102193. The next prime is 201001102243. The reversal of 201001102200 is 2201100102.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×201001102200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 55831840 + ... + 55835439.

Almost surely, 2^201001102200 is an apocalyptic number.

201001102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201001102200 is an abundant number, since it is smaller than the sum of its proper divisors (474027605400).

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

201001102200 is a wasteful number, since it uses less digits than its factorization.

201001102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111667301 (or 111667289 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 201001102200 its reverse (2201100102), we get a palindrome (203202202302).

The spelling of 201001102200 in words is "two hundred one billion, one million, one hundred two thousand, two hundred".