21222202010001 has 8 divisors (see below), whose sum is σ = 28296522033024. Its totient is φ = 14148008330160.

The previous prime is 21222202009951. The next prime is 21222202010071. The reversal of 21222202010001 is 10001020222212.

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

It is not a de Polignac number, because 21222202010001 - 2²² = 21222197815697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21222202010071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31193161 + ... + 31866246.

It is an arithmetic number, because the mean of its divisors is an integer number (3537065254128).

Almost surely, 2^{21222202010001} is an apocalyptic number.

It is an amenable number.

21222202010001 is a deficient number, since it is larger than the sum of its proper divisors (7074320023023).

21222202010001 is a wasteful number, since it uses less digits than its factorization.

21222202010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63171591.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21222202010001 its reverse (10001020222212), we get a palindrome (31223222232213).

The spelling of 21222202010001 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred two million, ten thousand, one".