21441101051 has 8 divisors (see below), whose sum is σ = 22647465984. Its totient is φ = 20266905960.

The previous prime is 21441100997. The next prime is 21441101093. The reversal of 21441101051 is 15010114412.

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

It is not a de Polignac number, because 21441101051 - 2²² = 21436906747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21441101651) 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, 8041091 + ... + 8043756.

It is an arithmetic number, because the mean of its divisors is an integer number (2830933248).

Almost surely, 2^21441101051 is an apocalyptic number.

21441101051 is a deficient number, since it is larger than the sum of its proper divisors (1206364933).

21441101051 is a wasteful number, since it uses less digits than its factorization.

21441101051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16084921.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 21441101051 its reverse (15010114412), we get a palindrome (36451215463).

The spelling of 21441101051 in words is "twenty-one billion, four hundred forty-one million, one hundred one thousand, fifty-one".