12122211111010 has 384 divisors, whose sum is σ = 30873466794240. Its totient is φ = 3364684646400.

The previous prime is 12122211111001. The next prime is 12122211111079. The reversal of 12122211111010 is 1011111222121.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 4789493445 + ... + 4789495975.

It is an arithmetic number, because the mean of its divisors is an integer number (80399653110).

Almost surely, 2^{12122211111010} is an apocalyptic number.

12122211111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122211111010 is an abundant number, since it is smaller than the sum of its proper divisors (18751255683230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12122211111010 is a wasteful number, since it uses less digits than its factorization.

12122211111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962 (or 4955 counting only the distinct ones).

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

Adding to 12122211111010 its reverse (1011111222121), we get a palindrome (13133322333131).

It can be divided in two parts, 1212221111 and 1010, that added together give a palindrome (1212222121).

The spelling of 12122211111010 in words is "twelve trillion, one hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand, ten".