11101120121212 has 12 divisors (see below), whose sum is σ = 21193047504216. Its totient is φ = 5045963691440.

The previous prime is 11101120121207. The next prime is 11101120121213. The reversal of 11101120121212 is 21212102110111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101120121213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126149092243 + ... + 126149092330.

It is an arithmetic number, because the mean of its divisors is an integer number (1766087292018).

Almost surely, 2^{11101120121212} is an apocalyptic number.

It is an amenable number.

11101120121212 is a deficient number, since it is larger than the sum of its proper divisors (10091927383004).

11101120121212 is a wasteful number, since it uses less digits than its factorization.

11101120121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252298184588 (or 252298184586 counting only the distinct ones).

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

Adding to 11101120121212 its reverse (21212102110111), we get a palindrome (32313222231323).

The spelling of 11101120121212 in words is "eleven trillion, one hundred one billion, one hundred twenty million, one hundred twenty-one thousand, two hundred twelve".