22222221220001 has 8 divisors (see below), whose sum is σ = 24255338687424. Its totient is φ = 20191256342320.

The previous prime is 22222221219973. The next prime is 22222221220019. The reversal of 22222221220001 is 10002212222222.

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 22222221220001 - 2¹⁸ = 22222220957857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22222221220081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538125845 + ... + 538167138.

It is an arithmetic number, because the mean of its divisors is an integer number (3031917335928).

Almost surely, 2^{22222221220001} is an apocalyptic number.

It is an amenable number.

22222221220001 is a deficient number, since it is larger than the sum of its proper divisors (2033117467423).

22222221220001 is a wasteful number, since it uses less digits than its factorization.

22222221220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076294871.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22222221220001 its reverse (10002212222222), we get a palindrome (32224433442223).

The spelling of 22222221220001 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, one".