201223020132 has 36 divisors (see below), whose sum is σ = 512060831100. Its totient is φ = 66624174912.

The previous prime is 201223020127. The next prime is 201223020137. The reversal of 201223020132 is 231020322102.

201223020132 is a `hidden beast` number, since 201 + 2 + 230 + 201 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (201223020127) and next prime (201223020137).

It can be written as a sum of positive squares in 2 ways, for example, as 83276107776 + 117946912356 = 288576^2 + 343434^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201223020137) 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, 18751443 + ... + 18762170.

It is an arithmetic number, because the mean of its divisors is an integer number (14223911975).

Almost surely, 2^201223020132 is an apocalyptic number.

It is an amenable number.

201223020132 is an abundant number, since it is smaller than the sum of its proper divisors (310837810968).

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

201223020132 is a wasteful number, since it uses less digits than its factorization.

201223020132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37513772 (or 37513767 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 201223020132 its reverse (231020322102), we get a palindrome (432243342234).

The spelling of 201223020132 in words is "two hundred one billion, two hundred twenty-three million, twenty thousand, one hundred thirty-two".