11142221271064 has 32 divisors (see below), whose sum is σ = 22705126290000. Its totient is φ = 5095384175232.

The previous prime is 11142221271019. The next prime is 11142221271091. The reversal of 11142221271064 is 46017212224111.

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, 491441614 + ... + 491464285.

Almost surely, 2^{11142221271064} is an apocalyptic number.

It is an amenable number.

11142221271064 is an abundant number, since it is smaller than the sum of its proper divisors (11562905018936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11142221271064 is a wasteful number, since it uses less digits than its factorization.

11142221271064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982906027 (or 982906023 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

Adding to 11142221271064 its reverse (46017212224111), we get a palindrome (57159433495175).

The spelling of 11142221271064 in words is "eleven trillion, one hundred forty-two billion, two hundred twenty-one million, two hundred seventy-one thousand, sixty-four".