220220201211001 has 2 divisors, whose sum is σ = 220220201211002. Its totient is φ = 220220201211000.

The previous prime is 220220201210993. The next prime is 220220201211071. The reversal of 220220201211001 is 100112102022022.

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., 216532725932601 + 3687475278400 = 14715051^2 + 1920280^2 .

It is a cyclic number.

It is not a de Polignac number, because 220220201211001 - 2³ = 220220201210993 is a prime.

It is not a weakly prime, because it can be changed into another prime (220220201211071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110100605500 + 110110100605501.

It is an arithmetic number, because the mean of its divisors is an integer number (110110100605501).

Almost surely, 2^{220220201211001} is an apocalyptic number.

It is an amenable number.

220220201211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

220220201211001 is an equidigital number, since it uses as much as digits as its factorization.

220220201211001 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 220220201211001 its reverse (100112102022022), we get a palindrome (320332303233023).

The spelling of 220220201211001 in words is "two hundred twenty trillion, two hundred twenty billion, two hundred one million, two hundred eleven thousand, one".