121121222112102 has 8 divisors (see below), whose sum is σ = 242242444224216. Its totient is φ = 40373740704032.

The previous prime is 121121222112071. The next prime is 121121222112119. The reversal of 121121222112102 is 201211222121121.

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

121121222112102 is an admirable number.

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, 10093435176003 + ... + 10093435176014.

It is an arithmetic number, because the mean of its divisors is an integer number (30280305528027).

Almost surely, 2^{121121222112102} is an apocalyptic number.

121121222112102 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.

121121222112102 is a wasteful number, since it uses less digits than its factorization.

121121222112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20186870352022.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121121222112102 its reverse (201211222121121), we get a palindrome (322332444233223).

The spelling of 121121222112102 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, one hundred two".