111211222200011 has 4 divisors (see below), whose sum is σ = 112060162827624. Its totient is φ = 110362281572400.

The previous prime is 111211222199977. The next prime is 111211222200041. The reversal of 111211222200011 is 110002222112111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111211222200011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111211222200041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424470313610 + ... + 424470313871.

It is an arithmetic number, because the mean of its divisors is an integer number (28015040706906).

Almost surely, 2^{111211222200011} is an apocalyptic number.

111211222200011 is a deficient number, since it is larger than the sum of its proper divisors (848940627613).

111211222200011 is an equidigital number, since it uses as much as digits as its factorization.

111211222200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848940627612.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111211222200011 its reverse (110002222112111), we get a palindrome (221213444312122).

The spelling of 111211222200011 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred twenty-two million, two hundred thousand, eleven".