11111211002012 has 48 divisors (see below), whose sum is σ = 21617190397152. Its totient is φ = 4954191790080.

The previous prime is 11111211001903. The next prime is 11111211002051. The reversal of 11111211002012 is 21020011211111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10387628 + ... + 11407244.

It is an arithmetic number, because the mean of its divisors is an integer number (450358133274).

Almost surely, 2^{11111211002012} is an apocalyptic number.

It is an amenable number.

11111211002012 is a deficient number, since it is larger than the sum of its proper divisors (10505979395140).

11111211002012 is a wasteful number, since it uses less digits than its factorization.

11111211002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024358 (or 1024356 counting only the distinct ones).

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

Adding to 11111211002012 its reverse (21020011211111), we get a palindrome (32131222213123).

The spelling of 11111211002012 in words is "eleven trillion, one hundred eleven billion, two hundred eleven million, two thousand, twelve".