5155415141221 has 4 divisors (see below), whose sum is σ = 5155968841344. Its totient is φ = 5154861441100.

The previous prime is 5155415141207. The next prime is 5155415141237. The reversal of 5155415141221 is 1221415145515.

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 5155415141221 - 2⁹ = 5155415140709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155415141251) 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, 276836095 + ... + 276854716.

It is an arithmetic number, because the mean of its divisors is an integer number (1288992210336).

Almost surely, 2^{5155415141221} is an apocalyptic number.

It is an amenable number.

5155415141221 is a deficient number, since it is larger than the sum of its proper divisors (553700123).

5155415141221 is an equidigital number, since it uses as much as digits as its factorization.

5155415141221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553700122.

The product of its digits is 40000, while the sum is 37.

The spelling of 5155415141221 in words is "five trillion, one hundred fifty-five billion, four hundred fifteen million, one hundred forty-one thousand, two hundred twenty-one".