1212203120210 has 32 divisors (see below), whose sum is σ = 2209953678912. Its totient is φ = 478670670400.

The previous prime is 1212203120189. The next prime is 1212203120213. The reversal of 1212203120210 is 120213022121.

It is not an unprimeable number, because it can be changed into a prime (1212203120213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518537 + ... + 1641123.

It is an arithmetic number, because the mean of its divisors is an integer number (69061052466).

Almost surely, 2^{1212203120210} is an apocalyptic number.

1212203120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212203120210 is a deficient number, since it is larger than the sum of its proper divisors (997750558702).

1212203120210 is a wasteful number, since it uses less digits than its factorization.

1212203120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123978.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1212203120210 its reverse (120213022121), we get a palindrome (1332416142331).

The spelling of 1212203120210 in words is "one trillion, two hundred twelve billion, two hundred three million, one hundred twenty thousand, two hundred ten".