21222210022201 has 8 divisors (see below), whose sum is σ = 21909229927424. Its totient is φ = 20535342147360.

The previous prime is 21222210022193. The next prime is 21222210022217. The reversal of 21222210022201 is 10222001222212.

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

It is a cyclic number.

It is not a de Polignac number, because 21222210022201 - 2³ = 21222210022193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21222210026201) 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, 37723860 + ... + 38282293.

It is an arithmetic number, because the mean of its divisors is an integer number (2738653740928).

Almost surely, 2^{21222210022201} is an apocalyptic number.

It is an amenable number.

21222210022201 is a deficient number, since it is larger than the sum of its proper divisors (687019905223).

21222210022201 is an equidigital number, since it uses as much as digits as its factorization.

21222210022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76015191.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21222210022201 its reverse (10222001222212), we get a palindrome (31444211244413).

The spelling of 21222210022201 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred ten million, twenty-two thousand, two hundred one".