1121212221067 has 2 divisors, whose sum is σ = 1121212221068. Its totient is φ = 1121212221066.

The previous prime is 1121212221011. The next prime is 1121212221079. The reversal of 1121212221067 is 7601222121211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121212221067 - 2²³ = 1121203832459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121212251067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560606110533 + 560606110534.

It is an arithmetic number, because the mean of its divisors is an integer number (560606110534).

Almost surely, 2^{1121212221067} is an apocalyptic number.

1121212221067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121212221067 is an equidigital number, since it uses as much as digits as its factorization.

1121212221067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

Adding to 1121212221067 its reverse (7601222121211), we get a palindrome (8722434342278).

The spelling of 1121212221067 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twenty-one thousand, sixty-seven".