220111212212201 has 2 divisors, whose sum is σ = 220111212212202. Its totient is φ = 220111212212200.

The previous prime is 220111212212053. The next prime is 220111212212249. The reversal of 220111212212201 is 102212212111022.

220111212212201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202579740768601 + 17531471443600 = 14233051^2 + 4187060^2 .

It is a cyclic number.

It is not a de Polignac number, because 220111212212201 - 2¹⁴ = 220111212195817 is a prime.

It is not a weakly prime, because it can be changed into another prime (220111212217201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055606106100 + 110055606106101.

It is an arithmetic number, because the mean of its divisors is an integer number (110055606106101).

Almost surely, 2^{220111212212201} is an apocalyptic number.

It is an amenable number.

220111212212201 is a deficient number, since it is larger than the sum of its proper divisors (1).

220111212212201 is an equidigital number, since it uses as much as digits as its factorization.

220111212212201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 220111212212201 its reverse (102212212111022), we get a palindrome (322323424323223).

The spelling of 220111212212201 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred twelve million, two hundred twelve thousand, two hundred one".