240350321221 has 2 divisors, whose sum is σ = 240350321222. Its totient is φ = 240350321220.

The previous prime is 240350321203. The next prime is 240350321257. The reversal of 240350321221 is 122123053042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239596544196 + 753777025 = 489486^2 + 27455^2 .

It is a cyclic number.

It is not a de Polignac number, because 240350321221 - 2¹³ = 240350313029 is a prime.

It is a super-2 number, since 2×240350321221² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240350321201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120175160610 + 120175160611.

It is an arithmetic number, because the mean of its divisors is an integer number (120175160611).

Almost surely, 2^240350321221 is an apocalyptic number.

It is an amenable number.

240350321221 is a deficient number, since it is larger than the sum of its proper divisors (1).

240350321221 is an equidigital number, since it uses as much as digits as its factorization.

240350321221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 240350321221 its reverse (122123053042), we get a palindrome (362473374263).

The spelling of 240350321221 in words is "two hundred forty billion, three hundred fifty million, three hundred twenty-one thousand, two hundred twenty-one".