240310040222221 has 2 divisors, whose sum is σ = 240310040222222. Its totient is φ = 240310040222220.

The previous prime is 240310040222183. The next prime is 240310040222249. The reversal of 240310040222221 is 122222040013042.

240310040222221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223687499666596 + 16622540555625 = 14956186^2 + 4077075^2 .

It is a cyclic number.

It is not a de Polignac number, because 240310040222221 - 2⁹ = 240310040221709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240310040222251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120155020111110 + 120155020111111.

It is an arithmetic number, because the mean of its divisors is an integer number (120155020111111).

Almost surely, 2^{240310040222221} is an apocalyptic number.

It is an amenable number.

240310040222221 is a deficient number, since it is larger than the sum of its proper divisors (1).

240310040222221 is an equidigital number, since it uses as much as digits as its factorization.

240310040222221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 240310040222221 its reverse (122222040013042), we get a palindrome (362532080235263).

The spelling of 240310040222221 in words is "two hundred forty trillion, three hundred ten billion, forty million, two hundred twenty-two thousand, two hundred twenty-one".