121222237 has 2 divisors, whose sum is σ = 121222238. Its totient is φ = 121222236.

The previous prime is 121222193. The next prime is 121222253. The reversal of 121222237 is 732222121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67551961 + 53670276 = 8219^2 + 7326^2 .

It is a cyclic number.

It is not a de Polignac number, because 121222237 - 2¹⁵ = 121189469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121222037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611118 + 60611119.

It is an arithmetic number, because the mean of its divisors is an integer number (60611119).

Almost surely, 2^121222237 is an apocalyptic number.

It is an amenable number.

121222237 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222237 is an equidigital number, since it uses as much as digits as its factorization.

121222237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 22.

The square root of 121222237 is about 11010.0970477103. The cubic root of 121222237 is about 494.9113700447.

Adding to 121222237 its reverse (732222121), we get a palindrome (853444358).

The spelling of 121222237 in words is "one hundred twenty-one million, two hundred twenty-two thousand, two hundred thirty-seven".