221200220109 has 8 divisors (see below), whose sum is σ = 321745774752. Its totient is φ = 134060739440.

The previous prime is 221200220083. The next prime is 221200220179. The reversal of 221200220109 is 901022002122.

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 221200220109 - 2⁵ = 221200220077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200220179) 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, 3351518454 + ... + 3351518519.

It is an arithmetic number, because the mean of its divisors is an integer number (40218221844).

Almost surely, 2^221200220109 is an apocalyptic number.

It is an amenable number.

221200220109 is a deficient number, since it is larger than the sum of its proper divisors (100545554643).

221200220109 is a wasteful number, since it uses less digits than its factorization.

221200220109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703036987.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 221200220109 in words is "two hundred twenty-one billion, two hundred million, two hundred twenty thousand, one hundred nine".