11001111101212 has 24 divisors (see below), whose sum is σ = 19873982963072. Its totient is φ = 5322848256000.

The previous prime is 11001111101209. The next prime is 11001111101219. The reversal of 11001111101212 is 21210111110011.

It is a super-2 number, since 2×11001111101212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11001111101192 and 11001111101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001111101219) 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, 215068 + ... + 4695580.

Almost surely, 2^{11001111101212} is an apocalyptic number.

It is an amenable number.

11001111101212 is a deficient number, since it is larger than the sum of its proper divisors (8872871861860).

11001111101212 is a wasteful number, since it uses less digits than its factorization.

11001111101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500349 (or 4500347 counting only the distinct ones).

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

Adding to 11001111101212 its reverse (21210111110011), we get a palindrome (32211222211223).

The spelling of 11001111101212 in words is "eleven trillion, one billion, one hundred eleven million, one hundred one thousand, two hundred twelve".