1011112222011 has 48 divisors (see below), whose sum is σ = 1418273525760. Its totient is φ = 640681493760.

The previous prime is 1011112221947. The next prime is 1011112222031. The reversal of 1011112222011 is 1102222111101.

It is a happy number.

It is not a de Polignac number, because 1011112222011 - 2⁶ = 1011112221947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011112222031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166325670 + ... + 166331748.

It is an arithmetic number, because the mean of its divisors is an integer number (29547365120).

Almost surely, 2^{1011112222011} is an apocalyptic number.

1011112222011 is a deficient number, since it is larger than the sum of its proper divisors (407161303749).

1011112222011 is a wasteful number, since it uses less digits than its factorization.

1011112222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776 (or 6753 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1011112222011 its reverse (1102222111101), we get a palindrome (2113334333112).

The spelling of 1011112222011 in words is "one trillion, eleven billion, one hundred twelve million, two hundred twenty-two thousand, eleven".