1212112111010 has 32 divisors (see below), whose sum is σ = 2203589973744. Its totient is φ = 480003840000.

The previous prime is 1212112110991. The next prime is 1212112111013. The reversal of 1212112111010 is 101112112121.

It can be written as a sum of positive squares in 8 ways, for example, as 1029293440681 + 182818670329 = 1014541^2 + 427573^2 .

It is not an unprimeable number, because it can be changed into a prime (1212112111013) 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 15 ways as a sum of consecutive naturals, for example, 13773950 + ... + 13861670.

Almost surely, 2^{1212112111010} is an apocalyptic number.

1212112111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212112111010 is a deficient number, since it is larger than the sum of its proper divisors (991477862734).

1212112111010 is a wasteful number, since it uses less digits than its factorization.

1212112111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101510.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1212112111010 its reverse (101112112121), we get a palindrome (1313224223131).

The spelling of 1212112111010 in words is "one trillion, two hundred twelve billion, one hundred twelve million, one hundred eleven thousand, ten".