1210215005 has 16 divisors (see below), whose sum is σ = 1487823744. Its totient is φ = 944516160.

The previous prime is 1210215001. The next prime is 1210215029. The reversal of 1210215005 is 5005120121.

It is not a de Polignac number, because 1210215005 - 2² = 1210215001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210215001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204995 + ... + 210815.

It is an arithmetic number, because the mean of its divisors is an integer number (92988984).

Almost surely, 2^1210215005 is an apocalyptic number.

It is an amenable number.

1210215005 is a deficient number, since it is larger than the sum of its proper divisors (277608739).

1210215005 is an equidigital number, since it uses as much as digits as its factorization.

1210215005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6836.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1210215005 is about 34788.1446041608. The cubic root of 1210215005 is about 1065.6653486785.

Adding to 1210215005 its reverse (5005120121), we get a palindrome (6215335126).

The spelling of 1210215005 in words is "one billion, two hundred ten million, two hundred fifteen thousand, five".