3103022021221 has 4 divisors (see below), whose sum is σ = 3186887481292. Its totient is φ = 3019156561152.

The previous prime is 3103022021173. The next prime is 3103022021257. The reversal of 3103022021221 is 1221202203013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2034360216100 + 1068661805121 = 1426310^2 + 1033761^2 .

It is a cyclic number.

It is not a de Polignac number, because 3103022021221 - 2⁷ = 3103022021093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103022021821) 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, 41932729980 + ... + 41932730053.

It is an arithmetic number, because the mean of its divisors is an integer number (796721870323).

Almost surely, 2^{3103022021221} is an apocalyptic number.

It is an amenable number.

3103022021221 is a deficient number, since it is larger than the sum of its proper divisors (83865460071).

3103022021221 is an equidigital number, since it uses as much as digits as its factorization.

3103022021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83865460070.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 3103022021221 its reverse (1221202203013), we get a palindrome (4324224224234).

The spelling of 3103022021221 in words is "three trillion, one hundred three billion, twenty-two million, twenty-one thousand, two hundred twenty-one".