1205211060 has 36 divisors (see below), whose sum is σ = 3655807428. Its totient is φ = 321389568.

The previous prime is 1205211053. The next prime is 1205211071. The reversal of 1205211060 is 601125021.

It can be written as a sum of positive squares in 2 ways, for example, as 430479504 + 774731556 = 20748^2 + 27834^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3347629 + ... + 3347988.

Almost surely, 2^1205211060 is an apocalyptic number.

1205211060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1205211060 is an abundant number, since it is smaller than the sum of its proper divisors (2450596368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1205211060 is a wasteful number, since it uses less digits than its factorization.

1205211060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695632 (or 6695627 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1205211060 is about 34716.1498441287. The cubic root of 1205211060 is about 1064.1945639354.

Adding to 1205211060 its reverse (601125021), we get a palindrome (1806336081).

The spelling of 1205211060 in words is "one billion, two hundred five million, two hundred eleven thousand, sixty".