1132210021 has 2 divisors, whose sum is σ = 1132210022. Its totient is φ = 1132210020.

The previous prime is 1132209997. The next prime is 1132210031. The reversal of 1132210021 is 1200122311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 846228100 + 285981921 = 29090^2 + 16911^2 .

It is an emirp because it is prime and its reverse (1200122311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1132210021 - 2²⁹ = 595339109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1132209983 and 1132210010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1132210031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566105010 + 566105011.

It is an arithmetic number, because the mean of its divisors is an integer number (566105011).

Almost surely, 2^1132210021 is an apocalyptic number.

It is an amenable number.

1132210021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132210021 is an equidigital number, since it uses as much as digits as its factorization.

1132210021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1132210021 is about 33648.3286509152. The cubic root of 1132210021 is about 1042.2590259778.

Adding to 1132210021 its reverse (1200122311), we get a palindrome (2332332332).

The spelling of 1132210021 in words is "one billion, one hundred thirty-two million, two hundred ten thousand, twenty-one".