5012221421 has 2 divisors, whose sum is σ = 5012221422. Its totient is φ = 5012221420.

The previous prime is 5012221397. The next prime is 5012221429. The reversal of 5012221421 is 1241222105.

5012221421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4487124196 + 525097225 = 66986^2 + 22915^2 .

It is a cyclic number.

It is not a de Polignac number, because 5012221421 - 2¹⁰ = 5012220397 is a prime.

It is a super-3 number, since 3×5012221421³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5012221393 and 5012221402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5012221429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2506110710 + 2506110711.

It is an arithmetic number, because the mean of its divisors is an integer number (2506110711).

Almost surely, 2^5012221421 is an apocalyptic number.

It is an amenable number.

5012221421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5012221421 is an equidigital number, since it uses as much as digits as its factorization.

5012221421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 5012221421 is about 70797.0438719019. The cubic root of 5012221421 is about 1711.3680354681.

Adding to 5012221421 its reverse (1241222105), we get a palindrome (6253443526).

The spelling of 5012221421 in words is "five billion, twelve million, two hundred twenty-one thousand, four hundred twenty-one".