2232132021 has 24 divisors (see below), whose sum is σ = 3770486720. Its totient is φ = 1245839616.

The previous prime is 2232131999. The next prime is 2232132121. The reversal of 2232132021 is 1202312322.

2232132021 is a `hidden beast` number, since 2 + 2 + 321 + 320 + 21 = 666.

It is not a de Polignac number, because 2232132021 - 2⁹ = 2232131509 is a prime.

It is a super-3 number, since 3×2232132021³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2232131985 and 2232132003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232132121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 409276 + ... + 414693.

Almost surely, 2^2232132021 is an apocalyptic number.

2232132021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2232132021 is a deficient number, since it is larger than the sum of its proper divisors (1538354699).

2232132021 is a wasteful number, since it uses less digits than its factorization.

2232132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824025 (or 824022 counting only the distinct ones).

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

The square root of 2232132021 is about 47245.4444470575. Note that the first 5 decimals coincide. The cubic root of 2232132021 is about 1306.8927816195.

Adding to 2232132021 its reverse (1202312322), we get a palindrome (3434444343).

The spelling of 2232132021 in words is "two billion, two hundred thirty-two million, one hundred thirty-two thousand, twenty-one".