2021021232 has 40 divisors (see below), whose sum is σ = 5298904896. Its totient is φ = 663617856.

The previous prime is 2021021207. The next prime is 2021021237. The reversal of 2021021232 is 2321201202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2021021237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310998 + ... + 317429.

Almost surely, 2^2021021232 is an apocalyptic number.

It is an amenable number.

2021021232 is an abundant number, since it is smaller than the sum of its proper divisors (3277883664).

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

2021021232 is a wasteful number, since it uses less digits than its factorization.

2021021232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628505 (or 628499 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2021021232 is about 44955.7697298133. The cubic root of 2021021232 is about 1264.3198564297.

Adding to 2021021232 its reverse (2321201202), we get a palindrome (4342222434).

The spelling of 2021021232 in words is "two billion, twenty-one million, twenty-one thousand, two hundred thirty-two".