111122000120221 has 2 divisors, whose sum is σ = 111122000120222. Its totient is φ = 111122000120220.

The previous prime is 111122000120141. The next prime is 111122000120249. The reversal of 111122000120221 is 122021000221111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66853337079321 + 44268663040900 = 8176389^2 + 6653470^2 .

It is a cyclic number.

It is not a de Polignac number, because 111122000120221 - 2¹⁷ = 111121999989149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111122000120195 and 111122000120204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111122000150221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561000060110 + 55561000060111.

It is an arithmetic number, because the mean of its divisors is an integer number (55561000060111).

Almost surely, 2^{111122000120221} is an apocalyptic number.

It is an amenable number.

111122000120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122000120221 is an equidigital number, since it uses as much as digits as its factorization.

111122000120221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111122000120221 its reverse (122021000221111), we get a palindrome (233143000341332).

The spelling of 111122000120221 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred twenty thousand, two hundred twenty-one".