2132124221 has 2 divisors, whose sum is σ = 2132124222. Its totient is φ = 2132124220.

The previous prime is 2132124217. The next prime is 2132124229. The reversal of 2132124221 is 1224212312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2053358596 + 78765625 = 45314^2 + 8875^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132124221 - 2² = 2132124217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2132124193 and 2132124202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132124229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066062110 + 1066062111.

It is an arithmetic number, because the mean of its divisors is an integer number (1066062111).

Almost surely, 2^2132124221 is an apocalyptic number.

It is an amenable number.

2132124221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132124221 is an equidigital number, since it uses as much as digits as its factorization.

2132124221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 20.

The square root of 2132124221 is about 46174.9306550643. The cubic root of 2132124221 is about 1287.0759282786.

Adding to 2132124221 its reverse (1224212312), we get a palindrome (3356336533).

The spelling of 2132124221 in words is "two billion, one hundred thirty-two million, one hundred twenty-four thousand, two hundred twenty-one".