1212010111210 has 16 divisors (see below), whose sum is σ = 2181631313376. Its totient is φ = 484801130448.

The previous prime is 1212010111199. The next prime is 1212010111223. The reversal of 1212010111210 is 121110102121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2335369 + ... + 2806771.

It is an arithmetic number, because the mean of its divisors is an integer number (136351957086).

Almost surely, 2^{1212010111210} is an apocalyptic number.

1212010111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212010111210 is a deficient number, since it is larger than the sum of its proper divisors (969621202166).

1212010111210 is a wasteful number, since it uses less digits than its factorization.

1212010111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728517.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1212010111210 its reverse (121110102121), we get a palindrome (1333120213331).

The spelling of 1212010111210 in words is "one trillion, two hundred twelve billion, ten million, one hundred eleven thousand, two hundred ten".