22445242420055 has 32 divisors (see below), whose sum is σ = 34045839671424. Its totient is φ = 13823122853376.

The previous prime is 22445242420009. The next prime is 22445242420057. The reversal of 22445242420055 is 55002424254422.

It is a cyclic number.

It is not a de Polignac number, because 22445242420055 - 2¹⁸ = 22445242157911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22445242419994 and 22445242420021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22445242420057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 666607532 + ... + 666641201.

It is an arithmetic number, because the mean of its divisors is an integer number (1063932489732).

Almost surely, 2^{22445242420055} is an apocalyptic number.

22445242420055 is a deficient number, since it is larger than the sum of its proper divisors (11600597251369).

22445242420055 is a wasteful number, since it uses less digits than its factorization.

22445242420055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333248795.

The product of its (nonzero) digits is 1024000, while the sum is 41.

Adding to 22445242420055 its reverse (55002424254422), we get a palindrome (77447666674477).

The spelling of 22445242420055 in words is "twenty-two trillion, four hundred forty-five billion, two hundred forty-two million, four hundred twenty thousand, fifty-five".