22066554122521 has 8 divisors (see below), whose sum is σ = 22536190750464. Its totient is φ = 21596923139520.

The previous prime is 22066554122519. The next prime is 22066554122537. The reversal of 22066554122521 is 12522145566022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22066554122521 - 2¹ = 22066554122519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22066554122551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7020561 + ... + 9665473.

It is an arithmetic number, because the mean of its divisors is an integer number (2817023843808).

Almost surely, 2^{22066554122521} is an apocalyptic number.

It is an amenable number.

22066554122521 is a deficient number, since it is larger than the sum of its proper divisors (469636627943).

22066554122521 is a wasteful number, since it uses less digits than its factorization.

22066554122521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822471.

The product of its (nonzero) digits is 576000, while the sum is 43.

Adding to 22066554122521 its reverse (12522145566022), we get a palindrome (34588699688543).

The spelling of 22066554122521 in words is "twenty-two trillion, sixty-six billion, five hundred fifty-four million, one hundred twenty-two thousand, five hundred twenty-one".