11100211111112 has 8 divisors (see below), whose sum is σ = 20812895833350. Its totient is φ = 5550105555552.

The previous prime is 11100211111111. The next prime is 11100211111163. The reversal of 11100211111112 is 21111111200111.

It can be written as a sum of positive squares in only one way, i.e., 6064073701156 + 5036137409956 = 2462534^2 + 2244134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11100211111112² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11100211111111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693763194437 + ... + 693763194452.

Almost surely, 2^{11100211111112} is an apocalyptic number.

It is an amenable number.

11100211111112 is a deficient number, since it is larger than the sum of its proper divisors (9712684722238).

11100211111112 is a wasteful number, since it uses less digits than its factorization.

11100211111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387526388895 (or 1387526388891 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 11100211111112 its reverse (21111111200111), we get a palindrome (32211322311223).

The spelling of 11100211111112 in words is "eleven trillion, one hundred billion, two hundred eleven million, one hundred eleven thousand, one hundred twelve".