1212212211110 has 16 divisors (see below), whose sum is σ = 2296823137200. Its totient is φ = 459364627296.

The previous prime is 1212212211109. The next prime is 1212212211139. The reversal of 1212212211110 is 111122122121.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3190031945 + ... + 3190032324.

It is an arithmetic number, because the mean of its divisors is an integer number (143551446075).

Almost surely, 2^{1212212211110} is an apocalyptic number.

1212212211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212212211110 is a deficient number, since it is larger than the sum of its proper divisors (1084610926090).

1212212211110 is a wasteful number, since it uses less digits than its factorization.

1212212211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380064295.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1212212211110 its reverse (111122122121), we get a palindrome (1323334333231).

It can be divided in two parts, 12122122111 and 10, that added together give a palindrome (12122122121).

The spelling of 1212212211110 in words is "one trillion, two hundred twelve billion, two hundred twelve million, two hundred eleven thousand, one hundred ten".