2220100112221 has 2 divisors, whose sum is σ = 2220100112222. Its totient is φ = 2220100112220.

The previous prime is 2220100112201. The next prime is 2220100112261. The reversal of 2220100112221 is 1222110010222.

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., 2074000339321 + 146099772900 = 1440139^2 + 382230^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220100112221 - 2¹⁹ = 2220099587933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220100112195 and 2220100112204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220100112201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110050056110 + 1110050056111.

It is an arithmetic number, because the mean of its divisors is an integer number (1110050056111).

Almost surely, 2^{2220100112221} is an apocalyptic number.

It is an amenable number.

2220100112221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220100112221 is an equidigital number, since it uses as much as digits as its factorization.

2220100112221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2220100112221 its reverse (1222110010222), we get a palindrome (3442210122443).

The spelling of 2220100112221 in words is "two trillion, two hundred twenty billion, one hundred million, one hundred twelve thousand, two hundred twenty-one".