121111110122 has 8 divisors (see below), whose sum is σ = 181711879200. Its totient is φ = 60540483724.

The previous prime is 121111110101. The next prime is 121111110137. The reversal of 121111110122 is 221011111121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121111110097 and 121111110106.

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, 7525622 + ... + 7541697.

It is an arithmetic number, because the mean of its divisors is an integer number (22713984900).

Almost surely, 2^121111110122 is an apocalyptic number.

121111110122 is a deficient number, since it is larger than the sum of its proper divisors (60600769078).

121111110122 is a wasteful number, since it uses less digits than its factorization.

121111110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15071340.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121111110122 its reverse (221011111121), we get a palindrome (342122221243).

Subtracting 121111110122 from its reverse (221011111121), we obtain a palindrome (99900000999).

The spelling of 121111110122 in words is "one hundred twenty-one billion, one hundred eleven million, one hundred ten thousand, one hundred twenty-two".