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1132101221 is a prime number
BaseRepresentation
bin100001101111010…
…0111111001100101
32220220020200220212
41003132213321211
54304304214341
6304200505205
740024462436
oct10336477145
92826220825
101132101221
11531050449
1227717b205
131507101a4
14aa4d748d
15695c75eb
hex437a7e65

1132101221 has 2 divisors, whose sum is σ = 1132101222. Its totient is φ = 1132101220.

The previous prime is 1132101169. The next prime is 1132101227. The reversal of 1132101221 is 1221012311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 602457025 + 529644196 = 24545^2 + 23014^2 .

It is a cyclic number.

It is not a de Polignac number, because 1132101221 - 210 = 1132100197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1132101196 and 1132101205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1132101227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566050610 + 566050611.

It is an arithmetic number, because the mean of its divisors is an integer number (566050611).

Almost surely, 21132101221 is an apocalyptic number.

It is an amenable number.

1132101221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132101221 is an equidigital number, since it uses as much as digits as its factorization.

1132101221 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 14.

The square root of 1132101221 is about 33646.7118898712. The cubic root of 1132101221 is about 1042.2256395294.

Adding to 1132101221 its reverse (1221012311), we get a palindrome (2353113532).

The spelling of 1132101221 in words is "one billion, one hundred thirty-two million, one hundred one thousand, two hundred twenty-one".