221122000221 has 8 divisors (see below), whose sum is σ = 294976535520. Its totient is φ = 147341065872.

The previous prime is 221122000217. The next prime is 221122000241. The reversal of 221122000221 is 122000221122.

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

It is not a de Polignac number, because 221122000221 - 2² = 221122000217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221122000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122000201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18393226 + ... + 18405243.

It is an arithmetic number, because the mean of its divisors is an integer number (36872066940).

Almost surely, 2^221122000221 is an apocalyptic number.

It is an amenable number.

221122000221 is a deficient number, since it is larger than the sum of its proper divisors (73854535299).

221122000221 is a wasteful number, since it uses less digits than its factorization.

221122000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36800475.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221122000221 its reverse (122000221122), we get a palindrome (343122221343).

The spelling of 221122000221 in words is "two hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-one", and thus it is an aban number.