201504320512212 has 24 divisors (see below), whose sum is σ = 470177001344736. Its totient is φ = 67168070625568.

The previous prime is 201504320512211. The next prime is 201504320512217. The reversal of 201504320512212 is 212215023405102.

It is a super-2 number, since 2×201504320512212² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201504320512212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201504320512211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28020058 + ... + 34469294.

It is an arithmetic number, because the mean of its divisors is an integer number (19590708389364).

Almost surely, 2^{201504320512212} is an apocalyptic number.

It is an amenable number.

201504320512212 is an abundant number, since it is smaller than the sum of its proper divisors (268672680832524).

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

201504320512212 is a wasteful number, since it uses less digits than its factorization.

201504320512212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9052967 (or 9052965 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 201504320512212 its reverse (212215023405102), we get a palindrome (413719343917314).

The spelling of 201504320512212 in words is "two hundred one trillion, five hundred four billion, three hundred twenty million, five hundred twelve thousand, two hundred twelve".