111022112121 has 8 divisors (see below), whose sum is σ = 155820508320. Its totient is φ = 70119228672.

The previous prime is 111022112107. The next prime is 111022112161. The reversal of 111022112121 is 121211220111.

It is a happy number.

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

It is not a de Polignac number, because 111022112121 - 2⁶ = 111022112057 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111022112121.

It is not an unprimeable number, because it can be changed into a prime (111022112101) 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, 973878120 + ... + 973878233.

It is an arithmetic number, because the mean of its divisors is an integer number (19477563540).

Almost surely, 2^111022112121 is an apocalyptic number.

It is an amenable number.

111022112121 is a deficient number, since it is larger than the sum of its proper divisors (44798396199).

111022112121 is a wasteful number, since it uses less digits than its factorization.

111022112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947756375.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111022112121 its reverse (121211220111), we get a palindrome (232233332232).

The spelling of 111022112121 in words is "one hundred eleven billion, twenty-two million, one hundred twelve thousand, one hundred twenty-one".