3020221421 has 4 divisors (see below), whose sum is σ = 3451681632. Its totient is φ = 2588761212.

The previous prime is 3020221409. The next prime is 3020221423. The reversal of 3020221421 is 1241220203.

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 3020221421 - 2¹⁰ = 3020220397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3020221421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020221423) 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 in 3 ways as a sum of consecutive naturals, for example, 215730095 + ... + 215730108.

It is an arithmetic number, because the mean of its divisors is an integer number (862920408).

Almost surely, 2^3020221421 is an apocalyptic number.

It is an amenable number.

3020221421 is a deficient number, since it is larger than the sum of its proper divisors (431460211).

3020221421 is an equidigital number, since it uses as much as digits as its factorization.

3020221421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431460210.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 3020221421 is about 54956.5412030270. The cubic root of 3020221421 is about 1445.4827984058.

Adding to 3020221421 its reverse (1241220203), we get a palindrome (4261441624).

The spelling of 3020221421 in words is "three billion, twenty million, two hundred twenty-one thousand, four hundred twenty-one".