21222022020001 has 16 divisors (see below), whose sum is σ = 23391755289216. Its totient is φ = 19092548800000.

The previous prime is 21222022019969. The next prime is 21222022020019. The reversal of 21222022020001 is 10002022022212.

It is a cyclic number.

It is not a de Polignac number, because 21222022020001 - 2⁵ = 21222022019969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21222022020401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2277565 + ... + 6901546.

It is an arithmetic number, because the mean of its divisors is an integer number (1461984705576).

Almost surely, 2^{21222022020001} is an apocalyptic number.

It is an amenable number.

21222022020001 is a deficient number, since it is larger than the sum of its proper divisors (2169733269215).

21222022020001 is a wasteful number, since it uses less digits than its factorization.

21222022020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9181304.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21222022020001 its reverse (10002022022212), we get a palindrome (31224044042213).

The spelling of 21222022020001 in words is "twenty-one trillion, two hundred twenty-two billion, twenty-two million, twenty thousand, one".