5141121221 has 4 divisors (see below), whose sum is σ = 5141291244. Its totient is φ = 5140951200.

The previous prime is 5141121187. The next prime is 5141121229. The reversal of 5141121221 is 1221211415.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1407300196 + 3733821025 = 37514^2 + 61105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5141121221 is a prime.

It is a super-2 number, since 2×5141121221² = 52862254818033061682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5141121193 and 5141121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5141121229) 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, 26000 + ... + 104681.

It is an arithmetic number, because the mean of its divisors is an integer number (1285322811).

Almost surely, 2^5141121221 is an apocalyptic number.

It is an amenable number.

5141121221 is a deficient number, since it is larger than the sum of its proper divisors (170023).

5141121221 is a wasteful number, since it uses less digits than its factorization.

5141121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170022.

The product of its digits is 160, while the sum is 20.

The square root of 5141121221 is about 71701.6124016748. The cubic root of 5141121221 is about 1725.9145156823.

Adding to 5141121221 its reverse (1221211415), we get a palindrome (6362332636).

The spelling of 5141121221 in words is "five billion, one hundred forty-one million, one hundred twenty-one thousand, two hundred twenty-one".