22062421 has 4 divisors (see below), whose sum is σ = 22774144. Its totient is φ = 21350700.

The previous prime is 22062389. The next prime is 22062427. The reversal of 22062421 is 12426022.

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 22062421 - 2⁵ = 22062389 is a prime.

It is a super-3 number, since 3×22062421³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22062427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355815 + ... + 355876.

It is an arithmetic number, because the mean of its divisors is an integer number (5693536).

Almost surely, 2^22062421 is an apocalyptic number.

It is an amenable number.

22062421 is a deficient number, since it is larger than the sum of its proper divisors (711723).

22062421 is an equidigital number, since it uses as much as digits as its factorization.

22062421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711722.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22062421 is about 4697.0651475150. The cubic root of 22062421 is about 280.4686920593.

Adding to 22062421 its reverse (12426022), we get a palindrome (34488443).

The spelling of 22062421 in words is "twenty-two million, sixty-two thousand, four hundred twenty-one".