1111202212111 has 16 divisors (see below), whose sum is σ = 1203122741760. Its totient is φ = 1023137105760.

The previous prime is 1111202212039. The next prime is 1111202212129. The reversal of 1111202212111 is 1112122021111.

It is a cyclic number.

It is not a de Polignac number, because 1111202212111 - 2¹⁷ = 1111202081039 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 (1111202212711) 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, 2295795 + ... + 2737348.

It is an arithmetic number, because the mean of its divisors is an integer number (75195171360).

Almost surely, 2^{1111202212111} is an apocalyptic number.

1111202212111 is a deficient number, since it is larger than the sum of its proper divisors (91920529649).

1111202212111 is a wasteful number, since it uses less digits than its factorization.

1111202212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033526.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1111202212111 its reverse (1112122021111), we get a palindrome (2223324233222).

The spelling of 1111202212111 in words is "one trillion, one hundred eleven billion, two hundred two million, two hundred twelve thousand, one hundred eleven".