3112221020 has 48 divisors (see below), whose sum is σ = 6659186688. Its totient is φ = 1221506880.

The previous prime is 3112221017. The next prime is 3112221067. The reversal of 3112221020 is 201222113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3112220986 and 3112221004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348005 + ... + 356835.

It is an arithmetic number, because the mean of its divisors is an integer number (138733056).

Almost surely, 2^3112221020 is an apocalyptic number.

It is an amenable number.

3112221020 is an abundant number, since it is smaller than the sum of its proper divisors (3546965668).

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

3112221020 is a wasteful number, since it uses less digits than its factorization.

3112221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9170 (or 9168 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 3112221020 is about 55787.2836764795. The cubic root of 3112221020 is about 1460.0132950563.

Adding to 3112221020 its reverse (201222113), we get a palindrome (3313443133).

The spelling of 3112221020 in words is "three billion, one hundred twelve million, two hundred twenty-one thousand, twenty".