1242122333 has 2 divisors, whose sum is σ = 1242122334. Its totient is φ = 1242122332.

The previous prime is 1242122317. The next prime is 1242122389. The reversal of 1242122333 is 3332212421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1131515044 + 110607289 = 33638^2 + 10517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242122333 - 2⁴ = 1242122317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242122299 and 1242122308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242124333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621061166 + 621061167.

It is an arithmetic number, because the mean of its divisors is an integer number (621061167).

Almost surely, 2^1242122333 is an apocalyptic number.

It is an amenable number.

1242122333 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242122333 is an equidigital number, since it uses as much as digits as its factorization.

1242122333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 1242122333 is about 35243.7559434292. The cubic root of 1242122333 is about 1074.9496520137.

Adding to 1242122333 its reverse (3332212421), we get a palindrome (4574334754).

The spelling of 1242122333 in words is "one billion, two hundred forty-two million, one hundred twenty-two thousand, three hundred thirty-three".