21450014101 has 4 divisors (see below), whose sum is σ = 21457871104. Its totient is φ = 21442157100.

The previous prime is 21450014093. The next prime is 21450014141. The reversal of 21450014101 is 10141005412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21450014101 - 2³ = 21450014093 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 (21450014141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3924405 + ... + 3929866.

It is an arithmetic number, because the mean of its divisors is an integer number (5364467776).

Almost surely, 2^21450014101 is an apocalyptic number.

It is an amenable number.

21450014101 is a deficient number, since it is larger than the sum of its proper divisors (7857003).

21450014101 is an equidigital number, since it uses as much as digits as its factorization.

21450014101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7857002.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 21450014101 its reverse (10141005412), we get a palindrome (31591019513).

The spelling of 21450014101 in words is "twenty-one billion, four hundred fifty million, fourteen thousand, one hundred one".