1212101021210 has 128 divisors (see below), whose sum is σ = 2379032985600. Its totient is φ = 443157523200.

The previous prime is 1212101021167. The next prime is 1212101021227. The reversal of 1212101021210 is 121201012121.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 215558459 + ... + 215564081.

It is an arithmetic number, because the mean of its divisors is an integer number (18586195200).

Almost surely, 2^{1212101021210} is an apocalyptic number.

1212101021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212101021210 is a deficient number, since it is larger than the sum of its proper divisors (1166931964390).

1212101021210 is a wasteful number, since it uses less digits than its factorization.

1212101021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212101021210 its reverse (121201012121), we get a palindrome (1333302033331).

The spelling of 1212101021210 in words is "one trillion, two hundred twelve billion, one hundred one million, twenty-one thousand, two hundred ten".