221200012221023 has 8 divisors (see below), whose sum is σ = 241309859795280. Its totient is φ = 201090290572480.

The previous prime is 221200012220989. The next prime is 221200012221079. The reversal of 221200012221023 is 320122210002122.

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 221200012221023 - 2⁶ = 221200012220959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221200012220986 and 221200012221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200012211023) 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, 27789728 + ... + 34852101.

It is an arithmetic number, because the mean of its divisors is an integer number (30163732474410).

Almost surely, 2^{221200012221023} is an apocalyptic number.

221200012221023 is a deficient number, since it is larger than the sum of its proper divisors (20109847574257).

221200012221023 is a wasteful number, since it uses less digits than its factorization.

221200012221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62962857.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 221200012221023 its reverse (320122210002122), we get a palindrome (541322222223145).

The spelling of 221200012221023 in words is "two hundred twenty-one trillion, two hundred billion, twelve million, two hundred twenty-one thousand, twenty-three".