2021223232 has 56 divisors (see below), whose sum is σ = 4588824960. Its totient is φ = 865297920.

The previous prime is 2021223131. The next prime is 2021223277. The reversal of 2021223232 is 2323221202.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548757 + ... + 552427.

Almost surely, 2^2021223232 is an apocalyptic number.

It is an amenable number.

2021223232 is an abundant number, since it is smaller than the sum of its proper divisors (2567601728).

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

2021223232 is a wasteful number, since it uses less digits than its factorization.

2021223232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4919 (or 4909 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2021223232 is about 44958.0163263461. The cubic root of 2021223232 is about 1264.3619777260.

Adding to 2021223232 its reverse (2323221202), we get a palindrome (4344444434).

The spelling of 2021223232 in words is "two billion, twenty-one million, two hundred twenty-three thousand, two hundred thirty-two".