240221901131 has 2 divisors, whose sum is σ = 240221901132. Its totient is φ = 240221901130.

The previous prime is 240221901097. The next prime is 240221901181. The reversal of 240221901131 is 131109122042.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240221901131 is a prime.

It is a super-2 number, since 2×240221901131² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240221901131.

It is not a weakly prime, because it can be changed into another prime (240221901181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120110950565 + 120110950566.

It is an arithmetic number, because the mean of its divisors is an integer number (120110950566).

Almost surely, 2^240221901131 is an apocalyptic number.

240221901131 is a deficient number, since it is larger than the sum of its proper divisors (1).

240221901131 is an equidigital number, since it uses as much as digits as its factorization.

240221901131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 240221901131 in words is "two hundred forty billion, two hundred twenty-one million, nine hundred one thousand, one hundred thirty-one".