11214421052 has 24 divisors (see below), whose sum is σ = 20508870816. Its totient is φ = 5355466688.

The previous prime is 11214421051. The next prime is 11214421117. The reversal of 11214421052 is 25012441211.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11214421051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27743 + ... + 152310.

It is an arithmetic number, because the mean of its divisors is an integer number (854536284).

Almost surely, 2^11214421052 is an apocalyptic number.

It is an amenable number.

11214421052 is a deficient number, since it is larger than the sum of its proper divisors (9294449764).

11214421052 is a wasteful number, since it uses less digits than its factorization.

11214421052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180757 (or 180755 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 11214421052 its reverse (25012441211), we get a palindrome (36226862263).

The spelling of 11214421052 in words is "eleven billion, two hundred fourteen million, four hundred twenty-one thousand, fifty-two".