111220021120111 has 8 divisors (see below), whose sum is σ = 112638634721280. Its totient is φ = 109801676649912.

The previous prime is 111220021120099. The next prime is 111220021120141. The reversal of 111220021120111 is 111021120022111.

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

It is a cyclic number.

It is not a de Polignac number, because 111220021120111 - 2¹³ = 111220021111919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220021120141) 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, 66450895 + ... + 68104048.

It is an arithmetic number, because the mean of its divisors is an integer number (14079829340160).

Almost surely, 2^{111220021120111} is an apocalyptic number.

111220021120111 is a deficient number, since it is larger than the sum of its proper divisors (1418613601169).

111220021120111 is a wasteful number, since it uses less digits than its factorization.

111220021120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134565485.

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

Adding to 111220021120111 its reverse (111021120022111), we get a palindrome (222241141142222).

The spelling of 111220021120111 in words is "one hundred eleven trillion, two hundred twenty billion, twenty-one million, one hundred twenty thousand, one hundred eleven".