121212022221102 has 8 divisors (see below), whose sum is σ = 242424044442216. Its totient is φ = 40404007407032.

The previous prime is 121212022221023. The next prime is 121212022221113. The reversal of 121212022221102 is 201122220212121.

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

121212022221102 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10101001851753 + ... + 10101001851764.

It is an arithmetic number, because the mean of its divisors is an integer number (30303005555277).

Almost surely, 2^{121212022221102} is an apocalyptic number.

121212022221102 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.

121212022221102 is a wasteful number, since it uses less digits than its factorization.

121212022221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20202003703522.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121212022221102 its reverse (201122220212121), we get a palindrome (322334242433223).

The spelling of 121212022221102 in words is "one hundred twenty-one trillion, two hundred twelve billion, twenty-two million, two hundred twenty-one thousand, one hundred two".