21140214442305 has 32 divisors (see below), whose sum is σ = 38742486624000. Its totient is φ = 9642574405632.

The previous prime is 21140214442283. The next prime is 21140214442313. The reversal of 21140214442305 is 50324441204112.

It is not a de Polignac number, because 21140214442305 - 2⁵ = 21140214442273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224157060 + ... + 224251349.

It is an arithmetic number, because the mean of its divisors is an integer number (1210702707000).

Almost surely, 2^{21140214442305} is an apocalyptic number.

It is an amenable number.

21140214442305 is a deficient number, since it is larger than the sum of its proper divisors (17602272181695).

21140214442305 is a wasteful number, since it uses less digits than its factorization.

21140214442305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448408873.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 21140214442305 its reverse (50324441204112), we get a palindrome (71464655646417).

The spelling of 21140214442305 in words is "twenty-one trillion, one hundred forty billion, two hundred fourteen million, four hundred forty-two thousand, three hundred five".