1205522241 has 128 divisors (see below), whose sum is σ = 2269347840. Its totient is φ = 549504000.

The previous prime is 1205522239. The next prime is 1205522261. The reversal of 1205522241 is 1422255021.

It is not a de Polignac number, because 1205522241 - 2¹ = 1205522239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1205522261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7983516 + ... + 7983666.

It is an arithmetic number, because the mean of its divisors is an integer number (17729280).

Almost surely, 2^1205522241 is an apocalyptic number.

1205522241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1205522241 is a deficient number, since it is larger than the sum of its proper divisors (1063825599).

1205522241 is a wasteful number, since it uses less digits than its factorization.

1205522241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1205522241 is about 34720.6313450663. The cubic root of 1205522241 is about 1064.2861464094.

Adding to 1205522241 its reverse (1422255021), we get a palindrome (2627777262).

The spelling of 1205522241 in words is "one billion, two hundred five million, five hundred twenty-two thousand, two hundred forty-one".