1220122210001 has 2 divisors, whose sum is σ = 1220122210002. Its totient is φ = 1220122210000.

The previous prime is 1220122209979. The next prime is 1220122210033. The reversal of 1220122210001 is 1000122210221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616105685776 + 604016524225 = 784924^2 + 777185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220122210001 - 2³⁰ = 1219048468177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220122210051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610061105000 + 610061105001.

It is an arithmetic number, because the mean of its divisors is an integer number (610061105001).

Almost surely, 2^{1220122210001} is an apocalyptic number.

It is an amenable number.

1220122210001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220122210001 is an equidigital number, since it uses as much as digits as its factorization.

1220122210001 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 1220122210001 its reverse (1000122210221), we get a palindrome (2220244420222).

The spelling of 1220122210001 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, two hundred ten thousand, one".