111211122001011 has 8 divisors (see below), whose sum is σ = 154728517566720. Its totient is φ = 70917237217992.

The previous prime is 111211122001009. The next prime is 111211122001061. The reversal of 111211122001011 is 110100221112111.

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

It is not a de Polignac number, because 111211122001011 - 2¹ = 111211122001009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111211122001061) 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, 805877695591 + ... + 805877695728.

It is an arithmetic number, because the mean of its divisors is an integer number (19341064695840).

Almost surely, 2^{111211122001011} is an apocalyptic number.

111211122001011 is a deficient number, since it is larger than the sum of its proper divisors (43517395565709).

111211122001011 is a wasteful number, since it uses less digits than its factorization.

111211122001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611755391345.

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

Adding to 111211122001011 its reverse (110100221112111), we get a palindrome (221311343113122).

The spelling of 111211122001011 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred twenty-two million, one thousand, eleven".