201224011323421 has 16 divisors (see below), whose sum is σ = 202337110926720. Its totient is φ = 200112463293120.

The previous prime is 201224011323383. The next prime is 201224011323509. The reversal of 201224011323421 is 124323110422102.

201224011323421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201224011323421 is a prime.

It is a super-2 number, since 2×201224011323421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201224011323421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201224011323521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1896443856 + ... + 1896549958.

It is an arithmetic number, because the mean of its divisors is an integer number (12646069432920).

Almost surely, 2^{201224011323421} is an apocalyptic number.

It is an amenable number.

201224011323421 is a deficient number, since it is larger than the sum of its proper divisors (1113099603299).

201224011323421 is a wasteful number, since it uses less digits than its factorization.

201224011323421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113316.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 201224011323421 its reverse (124323110422102), we get a palindrome (325547121745523).

The spelling of 201224011323421 in words is "two hundred one trillion, two hundred twenty-four billion, eleven million, three hundred twenty-three thousand, four hundred twenty-one".