20122220102011 has 2 divisors, whose sum is σ = 20122220102012. Its totient is φ = 20122220102010.

The previous prime is 20122220101999. The next prime is 20122220102057. The reversal of 20122220102011 is 11020102222102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20122220102011 - 2⁷ = 20122220101883 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122220106011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061110051005 + 10061110051006.

It is an arithmetic number, because the mean of its divisors is an integer number (10061110051006).

Almost surely, 2^{20122220102011} is an apocalyptic number.

20122220102011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122220102011 is an equidigital number, since it uses as much as digits as its factorization.

20122220102011 is an evil number, because the sum of its binary digits is even.

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

Adding to 20122220102011 its reverse (11020102222102), we get a palindrome (31142322324113).

The spelling of 20122220102011 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty million, one hundred two thousand, eleven".