1111111002112 has 24 divisors (see below), whose sum is σ = 2221679473650. Its totient is φ = 555555500032.

The previous prime is 1111111002101. The next prime is 1111111002149. The reversal of 1111111002112 is 2112001111111.

It can be written as a sum of positive squares in only one way, i.e., 928802497536 + 182308504576 = 963744^2 + 426976^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1111111002092 and 1111111002101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271265287 + ... + 271269382.

Almost surely, 2^{1111111002112} is an apocalyptic number.

It is an amenable number.

1111111002112 is a deficient number, since it is larger than the sum of its proper divisors (1110568471538).

1111111002112 is an frugal number, since it uses more digits than its factorization.

1111111002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542534691 (or 542534671 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1111111002112 its reverse (2112001111111), we get a palindrome (3223112113223).

The spelling of 1111111002112 in words is "one trillion, one hundred eleven billion, one hundred eleven million, two thousand, one hundred twelve".