121102223111 has 8 divisors (see below), whose sum is σ = 128232493200. Its totient is φ = 113972687488.

The previous prime is 121102223087. The next prime is 121102223129. The reversal of 121102223111 is 111322201121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121102223111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121102223111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102226111) 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, 176000 + ... + 522666.

It is an arithmetic number, because the mean of its divisors is an integer number (16029061650).

Almost surely, 2^121102223111 is an apocalyptic number.

121102223111 is a deficient number, since it is larger than the sum of its proper divisors (7130270089).

121102223111 is a wasteful number, since it uses less digits than its factorization.

121102223111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367233.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121102223111 its reverse (111322201121), we get a palindrome (232424424232).

The spelling of 121102223111 in words is "one hundred twenty-one billion, one hundred two million, two hundred twenty-three thousand, one hundred eleven".