201221013012132 has 48 divisors (see below), whose sum is σ = 485710213141440. Its totient is φ = 64760209842048.

The previous prime is 201221013012109. The next prime is 201221013012191. The reversal of 201221013012132 is 231210310122102.

It is a junction number, because it is equal to n+sod(n) for n = 201221013012099 and 201221013012108.

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, 37510803 + ... + 42538245.

It is an arithmetic number, because the mean of its divisors is an integer number (10118962773780).

Almost surely, 2^{201221013012132} is an apocalyptic number.

It is an amenable number.

201221013012132 is an abundant number, since it is smaller than the sum of its proper divisors (284489200129308).

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

201221013012132 is a wasteful number, since it uses less digits than its factorization.

201221013012132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142492 (or 5142490 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 201221013012132 its reverse (231210310122102), we get a palindrome (432431323134234).

The spelling of 201221013012132 in words is "two hundred one trillion, two hundred twenty-one billion, thirteen million, twelve thousand, one hundred thirty-two".