1112731221101 has 6 divisors (see below), whose sum is σ = 1118408313930. Its totient is φ = 1107082800656.

The previous prime is 1112731221097. The next prime is 1112731221127. The reversal of 1112731221101 is 1011221372111.

It can be written as a sum of positive squares in 3 ways, for example, as 1055758305001 + 56972916100 = 1027501^2 + 238690^2 .

It is not a de Polignac number, because 1112731221101 - 2² = 1112731221097 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 (1112731221401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14297186 + ... + 14374803.

It is an arithmetic number, because the mean of its divisors is an integer number (186401385655).

Almost surely, 2^{1112731221101} is an apocalyptic number.

It is an amenable number.

1112731221101 is a deficient number, since it is larger than the sum of its proper divisors (5677092829).

1112731221101 is an frugal number, since it uses more digits than its factorization.

1112731221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28672383 (or 28672186 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 23.

Adding to 1112731221101 its reverse (1011221372111), we get a palindrome (2123952593212).

The spelling of 1112731221101 in words is "one trillion, one hundred twelve billion, seven hundred thirty-one million, two hundred twenty-one thousand, one hundred one".