21420114221001 has 8 divisors (see below), whose sum is σ = 29332048302784. Its totient is φ = 13894128143280.

The previous prime is 21420114220997. The next prime is 21420114221153. The reversal of 21420114221001 is 10012241102412.

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

It is not a de Polignac number, because 21420114221001 - 2² = 21420114220997 is a prime.

It is a super-3 number, since 3×21420114221001³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21420114221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96487000885 + ... + 96487001106.

It is an arithmetic number, because the mean of its divisors is an integer number (3666506037848).

Almost surely, 2^{21420114221001} is an apocalyptic number.

It is an amenable number.

21420114221001 is a deficient number, since it is larger than the sum of its proper divisors (7911934081783).

21420114221001 is a wasteful number, since it uses less digits than its factorization.

21420114221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192974002031.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 21420114221001 its reverse (10012241102412), we get a palindrome (31432355323413).

The spelling of 21420114221001 in words is "twenty-one trillion, four hundred twenty billion, one hundred fourteen million, two hundred twenty-one thousand, one".