22221210020001 has 16 divisors (see below), whose sum is σ = 30916647579264. Its totient is φ = 14169963798144.

The previous prime is 22221210019993. The next prime is 22221210020003. The reversal of 22221210020001 is 10002001212222.

It is not a de Polignac number, because 22221210020001 - 2³ = 22221210019993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22221210020003) 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, 12213795 + ... + 13914711.

It is an arithmetic number, because the mean of its divisors is an integer number (1932290473704).

Almost surely, 2^{22221210020001} is an apocalyptic number.

It is an amenable number.

22221210020001 is a deficient number, since it is larger than the sum of its proper divisors (8695437559263).

22221210020001 is a wasteful number, since it uses less digits than its factorization.

22221210020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890280.

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

Adding to 22221210020001 its reverse (10002001212222), we get a palindrome (32223211232223).

The spelling of 22221210020001 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred ten million, twenty thousand, one".