1111212200111 has 16 divisors (see below), whose sum is σ = 1203966220800. Its totient is φ = 1025568052704.

The previous prime is 1111212200107. The next prime is 1111212200167. The reversal of 1111212200111 is 1110022121111.

It is not a de Polignac number, because 1111212200111 - 2² = 1111212200107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111212203111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14724005 + ... + 14799281.

It is an arithmetic number, because the mean of its divisors is an integer number (75247888800).

Almost surely, 2^{1111212200111} is an apocalyptic number.

1111212200111 is a deficient number, since it is larger than the sum of its proper divisors (92754020689).

1111212200111 is an frugal number, since it uses more digits than its factorization.

1111212200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82035 (or 82009 counting only the distinct ones).

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

Adding to 1111212200111 its reverse (1110022121111), we get a palindrome (2221234321222).

The spelling of 1111212200111 in words is "one trillion, one hundred eleven billion, two hundred twelve million, two hundred thousand, one hundred eleven".