220211000002001 has 2 divisors, whose sum is σ = 220211000002002. Its totient is φ = 220211000002000.

The previous prime is 220211000001961. The next prime is 220211000002031. The reversal of 220211000002001 is 100200000112022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184021162393600 + 36189837608401 = 13565440^2 + 6015799^2 .

It is a cyclic number.

It is not a de Polignac number, because 220211000002001 - 2¹⁰ = 220211000000977 is a prime.

It is not a weakly prime, because it can be changed into another prime (220211000002031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105500001000 + 110105500001001.

It is an arithmetic number, because the mean of its divisors is an integer number (110105500001001).

Almost surely, 2^{220211000002001} is an apocalyptic number.

It is an amenable number.

220211000002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

220211000002001 is an equidigital number, since it uses as much as digits as its factorization.

220211000002001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220211000002001 its reverse (100200000112022), we get a palindrome (320411000114023).

The spelling of 220211000002001 in words is "two hundred twenty trillion, two hundred eleven billion, two thousand, one".