201002012192 has 72 divisors (see below), whose sum is σ = 430632515124. Its totient is φ = 92032376832.

The previous prime is 201002012191. The next prime is 201002012203. The reversal of 201002012192 is 291210200102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 200987235856 + 14776336 = 448316^2 + 3844^2 .

It is not an unprimeable number, because it can be changed into a prime (201002012191) 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, 609788 + ... + 879684.

Almost surely, 2^201002012192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201002012192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215316257562).

201002012192 is an abundant number, since it is smaller than the sum of its proper divisors (229630502932).

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

201002012192 is a wasteful number, since it uses less digits than its factorization.

201002012192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269998 (or 269953 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 201002012192 its reverse (291210200102), we get a palindrome (492212212294).

The spelling of 201002012192 in words is "two hundred one billion, two million, twelve thousand, one hundred ninety-two".