2412501020221 has 4 divisors (see below), whose sum is σ = 2420111433852. Its totient is φ = 2404890606592.

The previous prime is 2412501020219. The next prime is 2412501020243. The reversal of 2412501020221 is 1220201052142.

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 99634922500 + 2312866097721 = 315650^2 + 1520811^2 .

It is a cyclic number.

It is not a de Polignac number, because 2412501020221 - 2¹ = 2412501020219 is a prime.

It is a super-2 number, since 2×2412501020221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2412501020192 and 2412501020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2412501024221) 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, 3805206340 + ... + 3805206973.

It is an arithmetic number, because the mean of its divisors is an integer number (605027858463).

Almost surely, 2^{2412501020221} is an apocalyptic number.

It is an amenable number.

2412501020221 is a deficient number, since it is larger than the sum of its proper divisors (7610413631).

2412501020221 is an equidigital number, since it uses as much as digits as its factorization.

2412501020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610413630.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 2412501020221 its reverse (1220201052142), we get a palindrome (3632702072363).

The spelling of 2412501020221 in words is "two trillion, four hundred twelve billion, five hundred one million, twenty thousand, two hundred twenty-one".