22220021101001 has 2 divisors, whose sum is σ = 22220021101002. Its totient is φ = 22220021101000.

The previous prime is 22220021100989. The next prime is 22220021101151. The reversal of 22220021101001 is 10010112002222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22148092542976 + 71928558025 = 4706176^2 + 268195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22220021101001 is a prime.

It is not a weakly prime, because it can be changed into another prime (22220021101501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110010550500 + 11110010550501.

It is an arithmetic number, because the mean of its divisors is an integer number (11110010550501).

Almost surely, 2^{22220021101001} is an apocalyptic number.

It is an amenable number.

22220021101001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220021101001 is an equidigital number, since it uses as much as digits as its factorization.

22220021101001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22220021101001 its reverse (10010112002222), we get a palindrome (32230133103223).

The spelling of 22220021101001 in words is "twenty-two trillion, two hundred twenty billion, twenty-one million, one hundred one thousand, one".