121102102221222 has 16 divisors (see below), whose sum is σ = 242208545144832. Its totient is φ = 40366643956680.

The previous prime is 121102102221197. The next prime is 121102102221223. The reversal of 121102102221222 is 222122201201121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102102221223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180499854 + ... + 181169537.

It is an arithmetic number, because the mean of its divisors is an integer number (15138034071552).

Almost surely, 2^{121102102221222} is an apocalyptic number.

121102102221222 is an abundant number, since it is smaller than the sum of its proper divisors (121106442923610).

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

121102102221222 is a wasteful number, since it uses less digits than its factorization.

121102102221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361725203.

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

Adding to 121102102221222 its reverse (222122201201121), we get a palindrome (343224303422343).

The spelling of 121102102221222 in words is "one hundred twenty-one trillion, one hundred two billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty-two".