121102222121122 has 16 divisors (see below), whose sum is σ = 198920760299712. Its totient is φ = 54837162451120.

The previous prime is 121102222121059. The next prime is 121102222121131. The reversal of 121102222121122 is 221121222201121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 121102222121093 and 121102222121102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10465101553 + ... + 10465113124.

It is an arithmetic number, because the mean of its divisors is an integer number (12432547518732).

Almost surely, 2^{121102222121122} is an apocalyptic number.

121102222121122 is a deficient number, since it is larger than the sum of its proper divisors (77818538178590).

121102222121122 is a wasteful number, since it uses less digits than its factorization.

121102222121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20930214953.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 121102222121122 its reverse (221121222201121), we get a palindrome (342223444322243).

The spelling of 121102222121122 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".