3121022232 has 128 divisors (see below), whose sum is σ = 9158400000. Its totient is φ = 982067328.

The previous prime is 3121022227. The next prime is 3121022257. The reversal of 3121022232 is 2322201213.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1299769 + ... + 1302167.

It is an arithmetic number, because the mean of its divisors is an integer number (71550000).

Almost surely, 2^3121022232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3121022232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4579200000).

3121022232 is an abundant number, since it is smaller than the sum of its proper divisors (6037377768).

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

3121022232 is a wasteful number, since it uses less digits than its factorization.

3121022232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3121022232 is about 55866.1098699381. The cubic root of 3121022232 is about 1461.3882822964.

Adding to 3121022232 its reverse (2322201213), we get a palindrome (5443223445).

The spelling of 3121022232 in words is "three billion, one hundred twenty-one million, twenty-two thousand, two hundred thirty-two".