21221141434041 has 32 divisors (see below), whose sum is σ = 29798500771840. Its totient is φ = 13396328757504.

The previous prime is 21221141434039. The next prime is 21221141434223. The reversal of 21221141434041 is 14043414112212.

It is not a de Polignac number, because 21221141434041 - 2¹ = 21221141434039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21221141432041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1706833761 + ... + 1706846193.

It is an arithmetic number, because the mean of its divisors is an integer number (931203149120).

Almost surely, 2^{21221141434041} is an apocalyptic number.

It is an amenable number.

21221141434041 is a deficient number, since it is larger than the sum of its proper divisors (8577359337799).

21221141434041 is a wasteful number, since it uses less digits than its factorization.

21221141434041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24565.

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 21221141434041 its reverse (14043414112212), we get a palindrome (35264555546253).

The spelling of 21221141434041 in words is "twenty-one trillion, two hundred twenty-one billion, one hundred forty-one million, four hundred thirty-four thousand, forty-one".