12101212222 has 8 divisors (see below), whose sum is σ = 19801983672. Its totient is φ = 5500551000.

The previous prime is 12101212219. The next prime is 12101212223. The reversal of 12101212222 is 22221210121.

It is a happy number.

12101212222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 12101212196 and 12101212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101212223) 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 3 ways as a sum of consecutive naturals, for example, 275027529 + ... + 275027572.

It is an arithmetic number, because the mean of its divisors is an integer number (2475247959).

Almost surely, 2^12101212222 is an apocalyptic number.

12101212222 is a deficient number, since it is larger than the sum of its proper divisors (7700771450).

12101212222 is a wasteful number, since it uses less digits than its factorization.

12101212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550055114.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12101212222 its reverse (22221210121), we get a palindrome (34322422343).

It can be divided in two parts, 1210121 and 2222, that multiplied together give a palindrome (2688888862).

The spelling of 12101212222 in words is "twelve billion, one hundred one million, two hundred twelve thousand, two hundred twenty-two".