201220530151121 has 16 divisors (see below), whose sum is σ = 216811983880128. Its totient is φ = 185645221444800.

The previous prime is 201220530151049. The next prime is 201220530151153. The reversal of 201220530151121 is 121151035022102.

It is a de Polignac number, because none of the positive numbers 2^k-201220530151121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201220530151181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563494451 + ... + 563851431.

It is an arithmetic number, because the mean of its divisors is an integer number (13550748992508).

Almost surely, 2^{201220530151121} is an apocalyptic number.

It is an amenable number.

201220530151121 is a deficient number, since it is larger than the sum of its proper divisors (15591453729007).

201220530151121 is a wasteful number, since it uses less digits than its factorization.

201220530151121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379472.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 201220530151121 its reverse (121151035022102), we get a palindrome (322371565173223).

The spelling of 201220530151121 in words is "two hundred one trillion, two hundred twenty billion, five hundred thirty million, one hundred fifty-one thousand, one hundred twenty-one".