11021220212012 has 12 divisors (see below), whose sum is σ = 19287160773216. Its totient is φ = 5510602848240.

The previous prime is 11021220212003. The next prime is 11021220212027. The reversal of 11021220212012 is 21021202212011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053258 + ... + 5600430.

It is an arithmetic number, because the mean of its divisors is an integer number (1607263397768).

Almost surely, 2^{11021220212012} is an apocalyptic number.

It is an amenable number.

11021220212012 is a deficient number, since it is larger than the sum of its proper divisors (8265940561204).

11021220212012 is a wasteful number, since it uses less digits than its factorization.

11021220212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628888 (or 3628886 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11021220212012 its reverse (21021202212011), we get a palindrome (32042422424023).

The spelling of 11021220212012 in words is "eleven trillion, twenty-one billion, two hundred twenty million, two hundred twelve thousand, twelve".