42211314251 has 2 divisors, whose sum is σ = 42211314252. Its totient is φ = 42211314250.

The previous prime is 42211314203. The next prime is 42211314293. The reversal of 42211314251 is 15241311224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42211314251 - 2¹⁰ = 42211313227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42211314251.

It is not a weakly prime, because it can be changed into another prime (42211514251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21105657125 + 21105657126.

It is an arithmetic number, because the mean of its divisors is an integer number (21105657126).

Almost surely, 2^42211314251 is an apocalyptic number.

42211314251 is a deficient number, since it is larger than the sum of its proper divisors (1).

42211314251 is an equidigital number, since it uses as much as digits as its factorization.

42211314251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 26.

Adding to 42211314251 its reverse (15241311224), we get a palindrome (57452625475).

The spelling of 42211314251 in words is "forty-two billion, two hundred eleven million, three hundred fourteen thousand, two hundred fifty-one".