221202010221109 has 8 divisors (see below), whose sum is σ = 223719625831680. Its totient is φ = 218685110161056.

The previous prime is 221202010221053. The next prime is 221202010221131. The reversal of 221202010221109 is 901122010202122.

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 221202010221109 - 2⁴¹ = 219002986965557 is a prime.

It is a super-2 number, since 2×221202010221109² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221202010221209) 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, 178265829 + ... + 179502394.

It is an arithmetic number, because the mean of its divisors is an integer number (27964953228960).

Almost surely, 2^{221202010221109} is an apocalyptic number.

It is an amenable number.

221202010221109 is a deficient number, since it is larger than the sum of its proper divisors (2517615610571).

221202010221109 is an equidigital number, since it uses as much as digits as its factorization.

221202010221109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357775259.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 221202010221109 in words is "two hundred twenty-one trillion, two hundred two billion, ten million, two hundred twenty-one thousand, one hundred nine".