220221100001 has 8 divisors (see below), whose sum is σ = 266486037120. Its totient is φ = 177657357888.

The previous prime is 220221099997. The next prime is 220221100013. The reversal of 220221100001 is 100001122022.

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 not a de Polignac number, because 220221100001 - 2² = 220221099997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220221100081) 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, 925298621 + ... + 925298858.

It is an arithmetic number, because the mean of its divisors is an integer number (33310754640).

Almost surely, 2^220221100001 is an apocalyptic number.

It is an amenable number.

220221100001 is a deficient number, since it is larger than the sum of its proper divisors (46264937119).

220221100001 is a wasteful number, since it uses less digits than its factorization.

220221100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850597503.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220221100001 its reverse (100001122022), we get a palindrome (320222222023).

The spelling of 220221100001 in words is "two hundred twenty billion, two hundred twenty-one million, one hundred thousand, one".