111022022020121 has 8 divisors (see below), whose sum is σ = 114108932640264. Its totient is φ = 107939654317440.

The previous prime is 111022022020103. The next prime is 111022022020153. The reversal of 111022022020121 is 121020220220111.

It can be written as a sum of positive squares in 4 ways, for example, as 84545450419600 + 26476571600521 = 9194860^2 + 5145539^2 .

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-111022022020121 is a prime.

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 111022022020121.

It is not an unprimeable number, because it can be changed into a prime (111022022920121) by changing a digit.

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, 1135679810 + ... + 1135777563.

It is an arithmetic number, because the mean of its divisors is an integer number (14263616580033).

Almost surely, 2^{111022022020121} is an apocalyptic number.

It is an amenable number.

111022022020121 is a deficient number, since it is larger than the sum of its proper divisors (3086910620143).

111022022020121 is a wasteful number, since it uses less digits than its factorization.

111022022020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271458731.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111022022020121 its reverse (121020220220111), we get a palindrome (232042242240232).

The spelling of 111022022020121 in words is "one hundred eleven trillion, twenty-two billion, twenty-two million, twenty thousand, one hundred twenty-one".