2220434550521 has 8 divisors (see below), whose sum is σ = 2422762920864. Its totient is φ = 2018184627520.

The previous prime is 2220434550487. The next prime is 2220434550539. The reversal of 2220434550521 is 1250554340222.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220434550521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2220484550521) 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 7 ways as a sum of consecutive naturals, for example, 19552640 + ... + 19665873.

It is an arithmetic number, because the mean of its divisors is an integer number (302845365108).

Almost surely, 2^{2220434550521} is an apocalyptic number.

It is an amenable number.

2220434550521 is a deficient number, since it is larger than the sum of its proper divisors (202328370343).

2220434550521 is a wasteful number, since it uses less digits than its factorization.

2220434550521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39223671.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 2220434550521 its reverse (1250554340222), we get a palindrome (3470988890743).

The spelling of 2220434550521 in words is "two trillion, two hundred twenty billion, four hundred thirty-four million, five hundred fifty thousand, five hundred twenty-one".