21225531013041 has 16 divisors (see below), whose sum is σ = 28311625438848. Its totient is φ = 14144896128000.

The previous prime is 21225531013033. The next prime is 21225531013069. The reversal of 21225531013041 is 14031013552212.

It is a happy number.

It is not a de Polignac number, because 21225531013041 - 2³ = 21225531013033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21225531013741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109538641 + ... + 109732241.

It is an arithmetic number, because the mean of its divisors is an integer number (1769476589928).

Almost surely, 2^{21225531013041} is an apocalyptic number.

It is an amenable number.

21225531013041 is a deficient number, since it is larger than the sum of its proper divisors (7086094425807).

21225531013041 is a wasteful number, since it uses less digits than its factorization.

21225531013041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207512.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 21225531013041 its reverse (14031013552212), we get a palindrome (35256544565253).

The spelling of 21225531013041 in words is "twenty-one trillion, two hundred twenty-five billion, five hundred thirty-one million, thirteen thousand, forty-one".