111220111002111 has 8 divisors (see below), whose sum is σ = 152301413264304. Its totient is φ = 72142774704000.

The previous prime is 111220111002061. The next prime is 111220111002113. The reversal of 111220111002111 is 111200111022111.

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

It is not a de Polignac number, because 111220111002111 - 2⁹ = 111220111001599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220111002113) 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, 500991490890 + ... + 500991491111.

It is an arithmetic number, because the mean of its divisors is an integer number (19037676658038).

Almost surely, 2^{111220111002111} is an apocalyptic number.

111220111002111 is a deficient number, since it is larger than the sum of its proper divisors (41081302262193).

111220111002111 is a wasteful number, since it uses less digits than its factorization.

111220111002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001982982041.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111220111002111 its reverse (111200111022111), we get a palindrome (222420222024222).

The spelling of 111220111002111 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred eleven million, two thousand, one hundred eleven".