201323012212 has 48 divisors (see below), whose sum is σ = 420233184000. Its totient is φ = 82514057472.

The previous prime is 201323012179. The next prime is 201323012221. The reversal of 201323012212 is 212210323102.

It is a super-2 number, since 2×201323012212² (a number of 23 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 201323012212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3675168 + ... + 3729544.

It is an arithmetic number, because the mean of its divisors is an integer number (8754858000).

Almost surely, 2^201323012212 is an apocalyptic number.

It is an amenable number.

201323012212 is an abundant number, since it is smaller than the sum of its proper divisors (218910171788).

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

201323012212 is a wasteful number, since it uses less digits than its factorization.

201323012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60160 (or 60158 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201323012212 its reverse (212210323102), we get a palindrome (413533335314).

The spelling of 201323012212 in words is "two hundred one billion, three hundred twenty-three million, twelve thousand, two hundred twelve".