11121201221012 has 24 divisors (see below), whose sum is σ = 19594015315392. Its totient is φ = 5522922504000.

The previous prime is 11121201220949. The next prime is 11121201221041. The reversal of 11121201221012 is 21012210212111.

It is a super-2 number, since 2×11121201221012² (a number of 27 digits) contains 22 as substring.

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, 2502248 + ... + 5338880.

It is an arithmetic number, because the mean of its divisors is an integer number (816417304808).

Almost surely, 2^{11121201221012} is an apocalyptic number.

It is an amenable number.

11121201221012 is a deficient number, since it is larger than the sum of its proper divisors (8472814094380).

11121201221012 is a wasteful number, since it uses less digits than its factorization.

11121201221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843279 (or 2843277 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11121201221012 its reverse (21012210212111), we get a palindrome (32133411433123).

The spelling of 11121201221012 in words is "eleven trillion, one hundred twenty-one billion, two hundred one million, two hundred twenty-one thousand, twelve".