1210505116 has 24 divisors (see below), whose sum is σ = 2168986176. Its totient is φ = 590860800.

The previous prime is 1210505063. The next prime is 1210505137. The reversal of 1210505116 is 6115050121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67360 + ... + 83416.

It is an arithmetic number, because the mean of its divisors is an integer number (90374424).

Almost surely, 2^1210505116 is an apocalyptic number.

It is an amenable number.

1210505116 is a deficient number, since it is larger than the sum of its proper divisors (958481060).

1210505116 is a wasteful number, since it uses less digits than its factorization.

1210505116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16509 (or 16507 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 1210505116 is about 34792.3140362926. The cubic root of 1210505116 is about 1065.7504951299.

Adding to 1210505116 its reverse (6115050121), we get a palindrome (7325555237).

The spelling of 1210505116 in words is "one billion, two hundred ten million, five hundred five thousand, one hundred sixteen".