74212503053221 has 8 divisors (see below), whose sum is σ = 79950187742040. Its totient is φ = 68478965594112.

The previous prime is 74212503053201. The next prime is 74212503053233. The reversal of 74212503053221 is 12235030521247.

It can be written as a sum of positive squares in 4 ways, for example, as 545472350721 + 73667030702500 = 738561^2 + 8582950^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74212503053221 - 2¹¹ = 74212503051173 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 (74212503053201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036770256 + ... + 1036841833.

It is an arithmetic number, because the mean of its divisors is an integer number (9993773467755).

Almost surely, 2^{74212503053221} is an apocalyptic number.

It is an amenable number.

74212503053221 is a deficient number, since it is larger than the sum of its proper divisors (5737684688819).

74212503053221 is a wasteful number, since it uses less digits than its factorization.

74212503053221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073614855.

The product of its (nonzero) digits is 100800, while the sum is 37.

Adding to 74212503053221 its reverse (12235030521247), we get a palindrome (86447533574468).

The spelling of 74212503053221 in words is "seventy-four trillion, two hundred twelve billion, five hundred three million, fifty-three thousand, two hundred twenty-one".