21040220141 has 8 divisors (see below), whose sum is σ = 21557957568. Its totient is φ = 20522700000.

The previous prime is 21040220093. The next prime is 21040220147. The reversal of 21040220141 is 14102204012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21040220141 - 2²⁶ = 20973111277 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 (21040220147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151166 + ... + 254816.

It is an arithmetic number, because the mean of its divisors is an integer number (2694744696).

Almost surely, 2^21040220141 is an apocalyptic number.

It is an amenable number.

21040220141 is a deficient number, since it is larger than the sum of its proper divisors (517737427).

21040220141 is a wasteful number, since it uses less digits than its factorization.

21040220141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108643.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21040220141 its reverse (14102204012), we get a palindrome (35142424153).

The spelling of 21040220141 in words is "twenty-one billion, forty million, two hundred twenty thousand, one hundred forty-one".