2231221032 has 192 divisors, whose sum is σ = 6802137600. Its totient is φ = 676823040.

The previous prime is 2231221021. The next prime is 2231221037. The reversal of 2231221032 is 2301221322.

It is a super-3 number, since 3×2231221032³ (a number of 29 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2231220996 and 2231221014.

It is not an unprimeable number, because it can be changed into a prime (2231221037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1934568 + ... + 1935720.

It is an arithmetic number, because the mean of its divisors is an integer number (35427800).

Almost surely, 2^2231221032 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 2231221032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3401068800).

2231221032 is an abundant number, since it is smaller than the sum of its proper divisors (4570916568).

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

2231221032 is a wasteful number, since it uses less digits than its factorization.

2231221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233 (or 1206 counting only the distinct ones).

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

The square root of 2231221032 is about 47235.8024384047. The cubic root of 2231221032 is about 1306.7149655315.

Adding to 2231221032 its reverse (2301221322), we get a palindrome (4532442354).

The spelling of 2231221032 in words is "two billion, two hundred thirty-one million, two hundred twenty-one thousand, thirty-two".