121282237 has 2 divisors, whose sum is σ = 121282238. Its totient is φ = 121282236.

The previous prime is 121282211. The next prime is 121282277. The reversal of 121282237 is 732282121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118135161 + 3147076 = 10869^2 + 1774^2 .

It is a cyclic number.

It is not a de Polignac number, because 121282237 - 2²³ = 112893629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121282207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60641118 + 60641119.

It is an arithmetic number, because the mean of its divisors is an integer number (60641119).

Almost surely, 2^121282237 is an apocalyptic number.

It is an amenable number.

121282237 is a deficient number, since it is larger than the sum of its proper divisors (1).

121282237 is an equidigital number, since it uses as much as digits as its factorization.

121282237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 28.

The square root of 121282237 is about 11012.8214822542. The cubic root of 121282237 is about 494.9930101383.

It can be divided in two parts, 12128 and 2237, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 121282237 in words is "one hundred twenty-one million, two hundred eighty-two thousand, two hundred thirty-seven".