22151225503507 has 2 divisors, whose sum is σ = 22151225503508. Its totient is φ = 22151225503506.

The previous prime is 22151225503411. The next prime is 22151225503513. The reversal of 22151225503507 is 70530552215122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22151225503507 - 2²³ = 22151217114899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22151225503507.

It is not a weakly prime, because it can be changed into another prime (22151225503567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11075612751753 + 11075612751754.

It is an arithmetic number, because the mean of its divisors is an integer number (11075612751754).

Almost surely, 2^{22151225503507} is an apocalyptic number.

22151225503507 is a deficient number, since it is larger than the sum of its proper divisors (1).

22151225503507 is an equidigital number, since it uses as much as digits as its factorization.

22151225503507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210000, while the sum is 40.

Adding to 22151225503507 its reverse (70530552215122), we get a palindrome (92681777718629).

The spelling of 22151225503507 in words is "twenty-two trillion, one hundred fifty-one billion, two hundred twenty-five million, five hundred three thousand, five hundred seven".