21140225501041 has 4 divisors (see below), whose sum is σ = 21631858652272. Its totient is φ = 20648592349812.

The previous prime is 21140225501033. The next prime is 21140225501107. The reversal of 21140225501041 is 14010552204112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21140225501041 - 2³ = 21140225501033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21140225531041) 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 3 ways as a sum of consecutive naturals, for example, 245816575551 + ... + 245816575636.

It is an arithmetic number, because the mean of its divisors is an integer number (5407964663068).

Almost surely, 2^{21140225501041} is an apocalyptic number.

It is an amenable number.

21140225501041 is a deficient number, since it is larger than the sum of its proper divisors (491633151231).

21140225501041 is an equidigital number, since it uses as much as digits as its factorization.

21140225501041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491633151230.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 21140225501041 its reverse (14010552204112), we get a palindrome (35150777705153).

The spelling of 21140225501041 in words is "twenty-one trillion, one hundred forty billion, two hundred twenty-five million, five hundred one thousand, forty-one".