121222133 has 2 divisors, whose sum is σ = 121222134. Its totient is φ = 121222132.

The previous prime is 121222099. The next prime is 121222141. The reversal of 121222133 is 331222121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87198244 + 34023889 = 9338^2 + 5833^2 .

It is a cyclic number.

It is not a de Polignac number, because 121222133 - 2⁶ = 121222069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121222163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611066 + 60611067.

It is an arithmetic number, because the mean of its divisors is an integer number (60611067).

Almost surely, 2^121222133 is an apocalyptic number.

It is an amenable number.

121222133 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222133 is an equidigital number, since it uses as much as digits as its factorization.

121222133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 17.

The square root of 121222133 is about 11010.0923247718. The cubic root of 121222133 is about 494.9112285118.

Adding to 121222133 its reverse (331222121), we get a palindrome (452444254).

The spelling of 121222133 in words is "one hundred twenty-one million, two hundred twenty-two thousand, one hundred thirty-three".