222220202111101 has 2 divisors, whose sum is σ = 222220202111102. Its totient is φ = 222220202111100.

The previous prime is 222220202111051. The next prime is 222220202111119. The reversal of 222220202111101 is 101111202022222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219814694170201 + 2405507940900 = 14826149^2 + 1550970^2 .

It is a cyclic number.

It is not a de Polignac number, because 222220202111101 - 2⁹ = 222220202110589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222220202111191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110101055550 + 111110101055551.

It is an arithmetic number, because the mean of its divisors is an integer number (111110101055551).

Almost surely, 2^{222220202111101} is an apocalyptic number.

It is an amenable number.

222220202111101 is a deficient number, since it is larger than the sum of its proper divisors (1).

222220202111101 is an equidigital number, since it uses as much as digits as its factorization.

222220202111101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222220202111101 its reverse (101111202022222), we get a palindrome (323331404133323).

The spelling of 222220202111101 in words is "two hundred twenty-two trillion, two hundred twenty billion, two hundred two million, one hundred eleven thousand, one hundred one".