11101220212 has 12 divisors (see below), whose sum is σ = 20449616320. Its totient is φ = 5258472696.

The previous prime is 11101220197. The next prime is 11101220243. The reversal of 11101220212 is 21202210111.

It is a junction number, because it is equal to n+sod(n) for n = 11101220192 and 11101220201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73034268 + ... + 73034419.

Almost surely, 2^11101220212 is an apocalyptic number.

It is an amenable number.

11101220212 is a deficient number, since it is larger than the sum of its proper divisors (9348396108).

11101220212 is a wasteful number, since it uses less digits than its factorization.

11101220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146068710 (or 146068708 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11101220212 its reverse (21202210111), we get a palindrome (32303430323).

The spelling of 11101220212 in words is "eleven billion, one hundred one million, two hundred twenty thousand, two hundred twelve".