222020111121121 has 2 divisors, whose sum is σ = 222020111121122. Its totient is φ = 222020111121120.

The previous prime is 222020111121073. The next prime is 222020111121143. The reversal of 222020111121121 is 121121111020222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216366007078225 + 5654104042896 = 14709385^2 + 2377836^2 .

It is a cyclic number.

It is not a de Polignac number, because 222020111121121 - 2⁹ = 222020111120609 is a prime.

It is not a weakly prime, because it can be changed into another prime (222020111131121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111010055560560 + 111010055560561.

It is an arithmetic number, because the mean of its divisors is an integer number (111010055560561).

Almost surely, 2^{222020111121121} is an apocalyptic number.

It is an amenable number.

222020111121121 is a deficient number, since it is larger than the sum of its proper divisors (1).

222020111121121 is an equidigital number, since it uses as much as digits as its factorization.

222020111121121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222020111121121 its reverse (121121111020222), we get a palindrome (343141222141343).

The spelling of 222020111121121 in words is "two hundred twenty-two trillion, twenty billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twenty-one".