2152032021 has 12 divisors (see below), whose sum is σ = 3161177760. Its totient is φ = 1410370920.

The previous prime is 2152032013. The next prime is 2152032041. The reversal of 2152032021 is 1202302512.

It is not a de Polignac number, because 2152032021 - 2³ = 2152032013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2152031985 and 2152032003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152032041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2025865 + ... + 2026926.

It is an arithmetic number, because the mean of its divisors is an integer number (263431480).

Almost surely, 2^2152032021 is an apocalyptic number.

It is an amenable number.

2152032021 is a deficient number, since it is larger than the sum of its proper divisors (1009145739).

2152032021 is a wasteful number, since it uses less digits than its factorization.

2152032021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052856 (or 4052853 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2152032021 is about 46389.9991485234. Note that the first 3 decimals coincide. The cubic root of 2152032021 is about 1291.0693656763.

Adding to 2152032021 its reverse (1202302512), we get a palindrome (3354334533).

The spelling of 2152032021 in words is "two billion, one hundred fifty-two million, thirty-two thousand, twenty-one".