40221120263 has 2 divisors, whose sum is σ = 40221120264. Its totient is φ = 40221120262.

The previous prime is 40221120229. The next prime is 40221120281. The reversal of 40221120263 is 36202112204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40221120263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40221120223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110560131 + 20110560132.

It is an arithmetic number, because the mean of its divisors is an integer number (20110560132).

Almost surely, 2^40221120263 is an apocalyptic number.

40221120263 is a deficient number, since it is larger than the sum of its proper divisors (1).

40221120263 is an equidigital number, since it uses as much as digits as its factorization.

40221120263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 40221120263 its reverse (36202112204), we get a palindrome (76423232467).

The spelling of 40221120263 in words is "forty billion, two hundred twenty-one million, one hundred twenty thousand, two hundred sixty-three".