11111021100212 has 24 divisors (see below), whose sum is σ = 21943395905760. Its totient is φ = 4876310200160.

The previous prime is 11111021100191. The next prime is 11111021100251. The reversal of 11111021100212 is 21200112011111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4353847118 + ... + 4353849669.

It is an arithmetic number, because the mean of its divisors is an integer number (914308162740).

Almost surely, 2^{11111021100212} is an apocalyptic number.

It is an amenable number.

11111021100212 is a deficient number, since it is larger than the sum of its proper divisors (10832374805548).

11111021100212 is a wasteful number, since it uses less digits than its factorization.

11111021100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8707696831 (or 8707696829 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11111021100212 its reverse (21200112011111), we get a palindrome (32311133111323).

The spelling of 11111021100212 in words is "eleven trillion, one hundred eleven billion, twenty-one million, one hundred thousand, two hundred twelve".