11511338712212 has 48 divisors (see below), whose sum is σ = 20542881338112. Its totient is φ = 5642591518080.

The previous prime is 11511338712197. The next prime is 11511338712239. The reversal of 11511338712212 is 21221783311511.

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, 124235333 + ... + 124327955.

It is an arithmetic number, because the mean of its divisors is an integer number (427976694544).

Almost surely, 2^{11511338712212} is an apocalyptic number.

It is an amenable number.

11511338712212 is a deficient number, since it is larger than the sum of its proper divisors (9031542625900).

11511338712212 is a wasteful number, since it uses less digits than its factorization.

11511338712212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94368 (or 94366 counting only the distinct ones).

The product of its digits is 20160, while the sum is 38.

The spelling of 11511338712212 in words is "eleven trillion, five hundred eleven billion, three hundred thirty-eight million, seven hundred twelve thousand, two hundred twelve".