4652261221 has 4 divisors (see below), whose sum is σ = 4854533472. Its totient is φ = 4449988972.

The previous prime is 4652261177. The next prime is 4652261269. The reversal of 4652261221 is 1221622564.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4652261221 - 2¹¹ = 4652259173 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4652261291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101136091 + ... + 101136136.

It is an arithmetic number, because the mean of its divisors is an integer number (1213633368).

Almost surely, 2^4652261221 is an apocalyptic number.

It is an amenable number.

4652261221 is a deficient number, since it is larger than the sum of its proper divisors (202272251).

4652261221 is a wasteful number, since it uses less digits than its factorization.

4652261221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202272250.

The product of its digits is 11520, while the sum is 31.

The square root of 4652261221 is about 68207.4865465661. The cubic root of 4652261221 is about 1669.3780442980.

Adding to 4652261221 its reverse (1221622564), we get a palindrome (5873883785).

The spelling of 4652261221 in words is "four billion, six hundred fifty-two million, two hundred sixty-one thousand, two hundred twenty-one".