11142012200421 has 16 divisors (see below), whose sum is σ = 15648542781440. Its totient is φ = 7032276422640.

The previous prime is 11142012200411. The next prime is 11142012200447. The reversal of 11142012200421 is 12400221024111.

It is not a de Polignac number, because 11142012200421 - 2¹³ = 11142012192229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142012200411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66358675 + ... + 66526368.

It is an arithmetic number, because the mean of its divisors is an integer number (978033923840).

Almost surely, 2^{11142012200421} is an apocalyptic number.

It is an amenable number.

11142012200421 is a deficient number, since it is larger than the sum of its proper divisors (4506530581019).

11142012200421 is a wasteful number, since it uses less digits than its factorization.

11142012200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132886536.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11142012200421 its reverse (12400221024111), we get a palindrome (23542233224532).

The spelling of 11142012200421 in words is "eleven trillion, one hundred forty-two billion, twelve million, two hundred thousand, four hundred twenty-one".