83262042221 has 4 divisors (see below), whose sum is σ = 83869794492. Its totient is φ = 82654289952.

The previous prime is 83262042191. The next prime is 83262042251. The reversal of 83262042221 is 12224026238.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (83262042191) and next prime (83262042251).

It can be written as a sum of positive squares in 2 ways, for example, as 58534479721 + 24727562500 = 241939^2 + 157250^2 .

It is a cyclic number.

It is not a de Polignac number, because 83262042221 - 2¹⁰ = 83262041197 is a prime.

It is a super-2 number, since 2×83262042221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83262042251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303875930 + ... + 303876203.

It is an arithmetic number, because the mean of its divisors is an integer number (20967448623).

Almost surely, 2^83262042221 is an apocalyptic number.

It is an amenable number.

83262042221 is a deficient number, since it is larger than the sum of its proper divisors (607752271).

83262042221 is a wasteful number, since it uses less digits than its factorization.

83262042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607752270.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 83262042221 its reverse (12224026238), we get a palindrome (95486068459).

The spelling of 83262042221 in words is "eighty-three billion, two hundred sixty-two million, forty-two thousand, two hundred twenty-one".