21443514535101 has 16 divisors (see below), whose sum is σ = 28608417129600. Its totient is φ = 14287145768448.

The previous prime is 21443514535081. The next prime is 21443514535103. The reversal of 21443514535101 is 10153541534412.

It is not a de Polignac number, because 21443514535101 - 2⁷ = 21443514534973 is a prime.

It is a super-2 number, since 2×21443514535101² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21443514535101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21443514535103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54204745 + ... + 54598913.

It is an arithmetic number, because the mean of its divisors is an integer number (1788026070600).

Almost surely, 2^{21443514535101} is an apocalyptic number.

It is an amenable number.

21443514535101 is a deficient number, since it is larger than the sum of its proper divisors (7164902594499).

21443514535101 is a wasteful number, since it uses less digits than its factorization.

21443514535101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404948.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 21443514535101 in words is "twenty-one trillion, four hundred forty-three billion, five hundred fourteen million, five hundred thirty-five thousand, one hundred one".