22101222021001 has 2 divisors, whose sum is σ = 22101222021002. Its totient is φ = 22101222021000.

The previous prime is 22101222020981. The next prime is 22101222021023. The reversal of 22101222021001 is 10012022210122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16353450723600 + 5747771297401 = 4043940^2 + 2397451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22101222021001 is a prime.

It is not a weakly prime, because it can be changed into another prime (22101222021101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050611010500 + 11050611010501.

It is an arithmetic number, because the mean of its divisors is an integer number (11050611010501).

Almost surely, 2^{22101222021001} is an apocalyptic number.

It is an amenable number.

22101222021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101222021001 is an equidigital number, since it uses as much as digits as its factorization.

22101222021001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22101222021001 its reverse (10012022210122), we get a palindrome (32113244231123).

The spelling of 22101222021001 in words is "twenty-two trillion, one hundred one billion, two hundred twenty-two million, twenty-one thousand, one".