2031221032 has 8 divisors (see below), whose sum is σ = 3808539450. Its totient is φ = 1015610512.

The previous prime is 2031221009. The next prime is 2031221041. The reversal of 2031221032 is 2301221302.

It can be written as a sum of positive squares in only one way, i.e., 2030944356 + 276676 = 45066^2 + 526^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2031220997 and 2031221015.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126951307 + ... + 126951322.

Almost surely, 2^2031221032 is an apocalyptic number.

It is an amenable number.

2031221032 is a deficient number, since it is larger than the sum of its proper divisors (1777318418).

2031221032 is a wasteful number, since it uses less digits than its factorization.

2031221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253902635 (or 253902631 counting only the distinct ones).

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

The square root of 2031221032 is about 45069.0695710484. The cubic root of 2031221032 is about 1266.4432343976.

Adding to 2031221032 its reverse (2301221302), we get a palindrome (4332442334).

The spelling of 2031221032 in words is "two billion, thirty-one million, two hundred twenty-one thousand, thirty-two".