22505211351243 has 48 divisors (see below), whose sum is σ = 34415113075200. Its totient is φ = 14153851752768.

The previous prime is 22505211351239. The next prime is 22505211351349. The reversal of 22505211351243 is 34215311250522.

22505211351243 is a `hidden beast` number, since 2 + 2 + 5 + 0 + 52 + 11 + 351 + 243 = 666.

It is not a de Polignac number, because 22505211351243 - 2² = 22505211351239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22505211351198 and 22505211351207.

It is not an unprimeable number, because it can be changed into a prime (22505211351223) 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 in 47 ways as a sum of consecutive naturals, for example, 5044693 + ... + 8394006.

It is an arithmetic number, because the mean of its divisors is an integer number (716981522400).

Almost surely, 2^{22505211351243} is an apocalyptic number.

22505211351243 is a deficient number, since it is larger than the sum of its proper divisors (11909901723957).

22505211351243 is a wasteful number, since it uses less digits than its factorization.

22505211351243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13438896 (or 13438893 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 22505211351243 in words is "twenty-two trillion, five hundred five billion, two hundred eleven million, three hundred fifty-one thousand, two hundred forty-three".