22221202120001 has 8 divisors (see below), whose sum is σ = 22489186802880. Its totient is φ = 21953223612432.

The previous prime is 22221202119929. The next prime is 22221202120009. The reversal of 22221202120001 is 10002120212222.

It is a happy number.

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 22221202120001 - 2²⁶ = 22221135011137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22221202120009) 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, 5912180 + ... + 8910458.

It is an arithmetic number, because the mean of its divisors is an integer number (2811148350360).

Almost surely, 2^{22221202120001} is an apocalyptic number.

It is an amenable number.

22221202120001 is a deficient number, since it is larger than the sum of its proper divisors (267984682879).

22221202120001 is an equidigital number, since it uses as much as digits as its factorization.

22221202120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087655.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22221202120001 its reverse (10002120212222), we get a palindrome (32223322332223).

The spelling of 22221202120001 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred two million, one hundred twenty thousand, one".