1211213303210 has 16 divisors (see below), whose sum is σ = 2294930469600. Its totient is φ = 458986093776.

The previous prime is 1211213303173. The next prime is 1211213303219. The reversal of 1211213303210 is 123033121121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1211213303219) 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 7 ways as a sum of consecutive naturals, for example, 3187403240 + ... + 3187403619.

It is an arithmetic number, because the mean of its divisors is an integer number (143433154350).

Almost surely, 2^{1211213303210} is an apocalyptic number.

1211213303210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211213303210 is a deficient number, since it is larger than the sum of its proper divisors (1083717166390).

1211213303210 is a wasteful number, since it uses less digits than its factorization.

1211213303210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374806885.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1211213303210 its reverse (123033121121), we get a palindrome (1334246424331).

The spelling of 1211213303210 in words is "one trillion, two hundred eleven billion, two hundred thirteen million, three hundred three thousand, two hundred ten".