12101212122 has 8 divisors (see below), whose sum is σ = 24202424256. Its totient is φ = 4033737372.

The previous prime is 12101212099. The next prime is 12101212129. The reversal of 12101212122 is 22121210121.

It is a sphenic number, since it is the product of 3 distinct primes.

12101212122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12101212129) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1008434338 + ... + 1008434349.

It is an arithmetic number, because the mean of its divisors is an integer number (3025303032).

Almost surely, 2^12101212122 is an apocalyptic number.

12101212122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12101212122 is a wasteful number, since it uses less digits than its factorization.

12101212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016868692.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12101212122 its reverse (22121210121), we get a palindrome (34222422243).

The spelling of 12101212122 in words is "twelve billion, one hundred one million, two hundred twelve thousand, one hundred twenty-two".