3102421220 has 24 divisors (see below), whose sum is σ = 6574860600. Its totient is φ = 1229582592.

The previous prime is 3102421199. The next prime is 3102421229. The reversal of 3102421220 is 221242013.

3102421220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5053504 + 3097367716 = 2248^2 + 55654^2 .

It is not an unprimeable number, because it can be changed into a prime (3102421229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709385 + ... + 713744.

It is an arithmetic number, because the mean of its divisors is an integer number (273952525).

Almost surely, 2^3102421220 is an apocalyptic number.

It is an amenable number.

3102421220 is an abundant number, since it is smaller than the sum of its proper divisors (3472439380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3102421220 is a wasteful number, since it uses less digits than its factorization.

3102421220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423247 (or 1423245 counting only the distinct ones).

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

The square root of 3102421220 is about 55699.3825818563. The cubic root of 3102421220 is about 1458.4792478181.

Adding to 3102421220 its reverse (221242013), we get a palindrome (3323663233).

The spelling of 3102421220 in words is "three billion, one hundred two million, four hundred twenty-one thousand, two hundred twenty".