3020311221 has 16 divisors (see below), whose sum is σ = 4140024000. Its totient is φ = 1957177728.

The previous prime is 3020311201. The next prime is 3020311237. The reversal of 3020311221 is 1221130203.

It is not a de Polignac number, because 3020311221 - 2¹⁰ = 3020310197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3020311221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020311201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103470 + ... + 129408.

It is an arithmetic number, because the mean of its divisors is an integer number (258751500).

Almost surely, 2^3020311221 is an apocalyptic number.

It is an amenable number.

3020311221 is a deficient number, since it is larger than the sum of its proper divisors (1119712779).

3020311221 is a wasteful number, since it uses less digits than its factorization.

3020311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27028.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3020311221 is about 54957.3582061583. The cubic root of 3020311221 is about 1445.4971244050.

Adding to 3020311221 its reverse (1221130203), we get a palindrome (4241441424).

The spelling of 3020311221 in words is "three billion, twenty million, three hundred eleven thousand, two hundred twenty-one".