1105254221 has 2 divisors, whose sum is σ = 1105254222. Its totient is φ = 1105254220.

The previous prime is 1105254193. The next prime is 1105254233. The reversal of 1105254221 is 1224525011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 937033321 + 168220900 = 30611^2 + 12970^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105254221 - 2²⁶ = 1038145357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105254281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552627110 + 552627111.

It is an arithmetic number, because the mean of its divisors is an integer number (552627111).

Almost surely, 2^1105254221 is an apocalyptic number.

It is an amenable number.

1105254221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105254221 is an equidigital number, since it uses as much as digits as its factorization.

1105254221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1105254221 is about 33245.3639023549. The cubic root of 1105254221 is about 1033.9210896835.

Adding to 1105254221 its reverse (1224525011), we get a palindrome (2329779232).

The spelling of 1105254221 in words is "one billion, one hundred five million, two hundred fifty-four thousand, two hundred twenty-one".