1220220020011 has 2 divisors, whose sum is σ = 1220220020012. Its totient is φ = 1220220020010.

The previous prime is 1220220019957. The next prime is 1220220020039. The reversal of 1220220020011 is 1100200220221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220220020011 - 2⁷ = 1220220019883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220220019973 and 1220220020000.

It is not a weakly prime, because it can be changed into another prime (1220220020311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610110010005 + 610110010006.

It is an arithmetic number, because the mean of its divisors is an integer number (610110010006).

Almost surely, 2^{1220220020011} is an apocalyptic number.

1220220020011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220220020011 is an equidigital number, since it uses as much as digits as its factorization.

1220220020011 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 13.

Adding to 1220220020011 its reverse (1100200220221), we get a palindrome (2320420240232).

The spelling of 1220220020011 in words is "one trillion, two hundred twenty billion, two hundred twenty million, twenty thousand, eleven".