22220221120001 has 4 divisors (see below), whose sum is σ = 22263875778900. Its totient is φ = 22176566461104.

The previous prime is 22220221119937. The next prime is 22220221120103. The reversal of 22220221120001 is 10002112202222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19936903685776 + 2283317434225 = 4465076^2 + 1511065^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220221120001 - 2⁶ = 22220221119937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220224120001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21827328686 + ... + 21827329703.

It is an arithmetic number, because the mean of its divisors is an integer number (5565968944725).

Almost surely, 2^{22220221120001} is an apocalyptic number.

It is an amenable number.

22220221120001 is a deficient number, since it is larger than the sum of its proper divisors (43654658899).

22220221120001 is an equidigital number, since it uses as much as digits as its factorization.

22220221120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43654658898.

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

Adding to 22220221120001 its reverse (10002112202222), we get a palindrome (32222333322223).

The spelling of 22220221120001 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty-one million, one hundred twenty thousand, one".