201200022 has 24 divisors (see below), whose sum is σ = 436284576. Its totient is φ = 67012656.

The previous prime is 201200017. The next prime is 201200023. The reversal of 201200022 is 220002102.

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

It is a junction number, because it is equal to n+sod(n) for n = 201199977 and 201200013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23008 + ... + 30524.

It is an arithmetic number, because the mean of its divisors is an integer number (18178524).

Almost surely, 2^201200022 is an apocalyptic number.

201200022 is an abundant number, since it is smaller than the sum of its proper divisors (235084554).

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

201200022 is a wasteful number, since it uses less digits than its factorization.

201200022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9012 (or 9009 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 201200022 is about 14184.4993566921. The cubic root of 201200022 is about 585.9708446474.

Adding to 201200022 its reverse (220002102), we get a palindrome (421202124).

The spelling of 201200022 in words is "two hundred one million, two hundred thousand, twenty-two".