111222001001111 has 48 divisors (see below), whose sum is σ = 150308202624768. Its totient is φ = 79917442675200.

The previous prime is 111222001001093. The next prime is 111222001001113. The reversal of 111222001001111 is 111100100222111.

It is not a de Polignac number, because 111222001001111 - 2¹⁰ = 111222001000087 is a prime.

It is a super-2 number, since 2×111222001001111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222001001113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8234495 + ... + 17036751.

It is an arithmetic number, because the mean of its divisors is an integer number (3131420888016).

Almost surely, 2^{111222001001111} is an apocalyptic number.

111222001001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111222001001111 is a deficient number, since it is larger than the sum of its proper divisors (39086201623657).

111222001001111 is a wasteful number, since it uses less digits than its factorization.

111222001001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8803272 (or 8803259 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111222001001111 its reverse (111100100222111), we get a palindrome (222322101223222).

The spelling of 111222001001111 in words is "one hundred eleven trillion, two hundred twenty-two billion, one million, one thousand, one hundred eleven".