240221411 has 2 divisors, whose sum is σ = 240221412. Its totient is φ = 240221410.

The previous prime is 240221363. The next prime is 240221431. The reversal of 240221411 is 114122042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240221411 - 2⁶ = 240221347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240221411.

It is not a weakly prime, because it can be changed into another prime (240221431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120110705 + 120110706.

It is an arithmetic number, because the mean of its divisors is an integer number (120110706).

Almost surely, 2^240221411 is an apocalyptic number.

240221411 is a deficient number, since it is larger than the sum of its proper divisors (1).

240221411 is an equidigital number, since it uses as much as digits as its factorization.

240221411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 240221411 is about 15499.0777467564. The cubic root of 240221411 is about 621.6375467468.

Adding to 240221411 its reverse (114122042), we get a palindrome (354343453).

The spelling of 240221411 in words is "two hundred forty million, two hundred twenty-one thousand, four hundred eleven".