1132400221 has 2 divisors, whose sum is σ = 1132400222. Its totient is φ = 1132400220.

The previous prime is 1132400179. The next prime is 1132400249. The reversal of 1132400221 is 1220042311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 876752100 + 255648121 = 29610^2 + 15989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1132400221 - 2¹⁹ = 1131875933 is a prime.

It is a super-3 number, since 3×1132400221³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1132400195 and 1132400204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1132400261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566200110 + 566200111.

It is an arithmetic number, because the mean of its divisors is an integer number (566200111).

Almost surely, 2^1132400221 is an apocalyptic number.

It is an amenable number.

1132400221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132400221 is an equidigital number, since it uses as much as digits as its factorization.

1132400221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1132400221 is about 33651.1548241661. The cubic root of 1132400221 is about 1042.3173857531.

Adding to 1132400221 its reverse (1220042311), we get a palindrome (2352442532).

The spelling of 1132400221 in words is "one billion, one hundred thirty-two million, four hundred thousand, two hundred twenty-one".