22210121221001 has 4 divisors (see below), whose sum is σ = 25382995681152. Its totient is φ = 19037246760852.

The previous prime is 22210121220941. The next prime is 22210121221021. The reversal of 22210121221001 is 10012212101222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22210121221001 - 2³⁸ = 21935243314057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22210121221021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1586437230065 + ... + 1586437230078.

It is an arithmetic number, because the mean of its divisors is an integer number (6345748920288).

Almost surely, 2^{22210121221001} is an apocalyptic number.

It is an amenable number.

22210121221001 is a deficient number, since it is larger than the sum of its proper divisors (3172874460151).

22210121221001 is an equidigital number, since it uses as much as digits as its factorization.

22210121221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172874460150.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22210121221001 its reverse (10012212101222), we get a palindrome (32222333322223).

The spelling of 22210121221001 in words is "twenty-two trillion, two hundred ten billion, one hundred twenty-one million, two hundred twenty-one thousand, one".