1011101222111 has 8 divisors (see below), whose sum is σ = 1011996205920. Its totient is φ = 1010206573792.

The previous prime is 1011101222099. The next prime is 1011101222137. The reversal of 1011101222111 is 1112221011101.

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

It is a cyclic number.

It is not a de Polignac number, because 1011101222111 - 2¹⁰ = 1011101221087 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 (1011101222171) 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, 6149885 + ... + 6312153.

It is an arithmetic number, because the mean of its divisors is an integer number (126499525740).

Almost surely, 2^{1011101222111} is an apocalyptic number.

1011101222111 is a deficient number, since it is larger than the sum of its proper divisors (894983809).

1011101222111 is a wasteful number, since it uses less digits than its factorization.

1011101222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167745.

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

Adding to 1011101222111 its reverse (1112221011101), we get a palindrome (2123322233212).

The spelling of 1011101222111 in words is "one trillion, eleven billion, one hundred one million, two hundred twenty-two thousand, one hundred eleven".