1022200112221 has 2 divisors, whose sum is σ = 1022200112222. Its totient is φ = 1022200112220.

The previous prime is 1022200112189. The next prime is 1022200112261. The reversal of 1022200112221 is 1222110022201.

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., 919078846596 + 103121265625 = 958686^2 + 321125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022200112221 - 2⁵ = 1022200112189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022200112195 and 1022200112204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022200112261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511100056110 + 511100056111.

It is an arithmetic number, because the mean of its divisors is an integer number (511100056111).

Almost surely, 2^{1022200112221} is an apocalyptic number.

It is an amenable number.

1022200112221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022200112221 is an equidigital number, since it uses as much as digits as its factorization.

1022200112221 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 1022200112221 its reverse (1222110022201), we get a palindrome (2244310134422).

The spelling of 1022200112221 in words is "one trillion, twenty-two billion, two hundred million, one hundred twelve thousand, two hundred twenty-one".