21444101512141 has 16 divisors (see below), whose sum is σ = 26735822709120. Its totient is φ = 16709489786880.

The previous prime is 21444101512103. The next prime is 21444101512193. The reversal of 21444101512141 is 14121510144412.

It is a happy number.

It is not a de Polignac number, because 21444101512141 - 2⁹ = 21444101511629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21444101552141) 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, 4992205 + ... + 8234701.

It is an arithmetic number, because the mean of its divisors is an integer number (1670988919320).

Almost surely, 2^{21444101512141} is an apocalyptic number.

It is an amenable number.

21444101512141 is a deficient number, since it is larger than the sum of its proper divisors (5291721196979).

21444101512141 is a wasteful number, since it uses less digits than its factorization.

21444101512141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328404.

The product of its (nonzero) digits is 5120, while the sum is 31.

Adding to 21444101512141 its reverse (14121510144412), we get a palindrome (35565611656553).

The spelling of 21444101512141 in words is "twenty-one trillion, four hundred forty-four billion, one hundred one million, five hundred twelve thousand, one hundred forty-one".