111222011001111 has 8 divisors (see below), whose sum is σ = 153409670346480. Its totient is φ = 71591179494912.

The previous prime is 111222011001083. The next prime is 111222011001119. The reversal of 111222011001111 is 111100110222111.

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

It is not a de Polignac number, because 111222011001111 - 2⁹ = 111222011000599 is a prime.

It is a super-2 number, since 2×111222011001111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222011001119) 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, 639206959690 + ... + 639206959863.

It is an arithmetic number, because the mean of its divisors is an integer number (19176208793310).

Almost surely, 2^{111222011001111} is an apocalyptic number.

111222011001111 is a deficient number, since it is larger than the sum of its proper divisors (42187659345369).

111222011001111 is a wasteful number, since it uses less digits than its factorization.

111222011001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278413919585.

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

Adding to 111222011001111 its reverse (111100110222111), we get a palindrome (222322121223222).

The spelling of 111222011001111 in words is "one hundred eleven trillion, two hundred twenty-two billion, eleven million, one thousand, one hundred eleven".