5421203262221 has 4 divisors (see below), whose sum is σ = 5421296163744. Its totient is φ = 5421110360700.

The previous prime is 5421203262217. The next prime is 5421203262229. The reversal of 5421203262221 is 1222623021245.

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 5421203262221 - 2² = 5421203262217 is a prime.

It is a super-2 number, since 2×5421203262221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421203262229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46363175 + ... + 46479956.

It is an arithmetic number, because the mean of its divisors is an integer number (1355324040936).

Almost surely, 2^{5421203262221} is an apocalyptic number.

It is an amenable number.

5421203262221 is a deficient number, since it is larger than the sum of its proper divisors (92901523).

5421203262221 is an equidigital number, since it uses as much as digits as its factorization.

5421203262221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92901522.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 5421203262221 its reverse (1222623021245), we get a palindrome (6643826283466).

The spelling of 5421203262221 in words is "five trillion, four hundred twenty-one billion, two hundred three million, two hundred sixty-two thousand, two hundred twenty-one".