5220621620001 has 24 divisors (see below), whose sum is σ = 7683328097640. Its totient is φ = 3414679946496.

The previous prime is 5220621619999. The next prime is 5220621620003. The reversal of 5220621620001 is 1000261260225.

It is an interprime number because it is at equal distance from previous prime (5220621619999) and next prime (5220621620003).

It can be written as a sum of positive squares in 4 ways, for example, as 215132702976 + 5005488917025 = 463824^2 + 2237295^2 .

It is not a de Polignac number, because 5220621620001 - 2¹ = 5220621619999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5220621620003) 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 23 ways as a sum of consecutive naturals, for example, 41874165 + ... + 41998653.

It is an arithmetic number, because the mean of its divisors is an integer number (320138670735).

Almost surely, 2^{5220621620001} is an apocalyptic number.

It is an amenable number.

5220621620001 is a deficient number, since it is larger than the sum of its proper divisors (2462706477639).

5220621620001 is a wasteful number, since it uses less digits than its factorization.

5220621620001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212465 (or 212462 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 5220621620001 its reverse (1000261260225), we get a palindrome (6220882880226).

The spelling of 5220621620001 in words is "five trillion, two hundred twenty billion, six hundred twenty-one million, six hundred twenty thousand, one".