3021220445 has 8 divisors (see below), whose sum is σ = 3630374880. Its totient is φ = 2413702800.

The previous prime is 3021220421. The next prime is 3021220487. The reversal of 3021220445 is 5440221203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3021220445 - 2¹² = 3021216349 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3021220445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405131 + ... + 412520.

It is an arithmetic number, because the mean of its divisors is an integer number (453796860).

Almost surely, 2^3021220445 is an apocalyptic number.

It is an amenable number.

3021220445 is a deficient number, since it is larger than the sum of its proper divisors (609154435).

3021220445 is an equidigital number, since it uses as much as digits as its factorization.

3021220445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818395.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 3021220445 is about 54965.6296698218. The cubic root of 3021220445 is about 1445.6421589970.

Adding to 3021220445 its reverse (5440221203), we get a palindrome (8461441648).

The spelling of 3021220445 in words is "three billion, twenty-one million, two hundred twenty thousand, four hundred forty-five".