3031122220 has 24 divisors (see below), whose sum is σ = 7274693664. Its totient is φ = 1039241856.

The previous prime is 3031122197. The next prime is 3031122223. The reversal of 3031122220 is 222211303.

It is a junction number, because it is equal to n+sod(n) for n = 3031122194 and 3031122203.

It is not an unprimeable number, because it can be changed into a prime (3031122223) 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, 10825297 + ... + 10825576.

It is an arithmetic number, because the mean of its divisors is an integer number (303112236).

Almost surely, 2^3031122220 is an apocalyptic number.

It is an amenable number.

3031122220 is an abundant number, since it is smaller than the sum of its proper divisors (4243571444).

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

3031122220 is a wasteful number, since it uses less digits than its factorization.

3031122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21650889 (or 21650887 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3031122220 is about 55055.6284134511. The cubic root of 3031122220 is about 1447.2197569675.

Adding to 3031122220 its reverse (222211303), we get a palindrome (3253333523).

The spelling of 3031122220 in words is "three billion, thirty-one million, one hundred twenty-two thousand, two hundred twenty".