12121222222102 has 8 divisors (see below), whose sum is σ = 20779238095056. Its totient is φ = 5194809523752.

The previous prime is 12121222222051. The next prime is 12121222222127. The reversal of 12121222222102 is 20122222212121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432900793633 + ... + 432900793660.

It is an arithmetic number, because the mean of its divisors is an integer number (2597404761882).

Almost surely, 2^{12121222222102} is an apocalyptic number.

12121222222102 is a deficient number, since it is larger than the sum of its proper divisors (8658015872954).

12121222222102 is an equidigital number, since it uses as much as digits as its factorization.

12121222222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865801587302.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12121222222102 its reverse (20122222212121), we get a palindrome (32243444434223).

The spelling of 12121222222102 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred two".