20122220220073 has 2 divisors, whose sum is σ = 20122220220074. Its totient is φ = 20122220220072.

The previous prime is 20122220220061. The next prime is 20122220220119. The reversal of 20122220220073 is 37002202222102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18350574035049 + 1771646185024 = 4283757^2 + 1331032^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122220220073 - 2⁹ = 20122220219561 is a prime.

It is a super-2 number, since 2×20122220220073² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20122220221073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061110110036 + 10061110110037.

It is an arithmetic number, because the mean of its divisors is an integer number (10061110110037).

Almost surely, 2^{20122220220073} is an apocalyptic number.

It is an amenable number.

20122220220073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122220220073 is an equidigital number, since it uses as much as digits as its factorization.

20122220220073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 20122220220073 its reverse (37002202222102), we get a palindrome (57124422442175).

The spelling of 20122220220073 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty million, two hundred twenty thousand, seventy-three".