1220220200109 has 16 divisors (see below), whose sum is σ = 1684808528384. Its totient is φ = 784723680000.

The previous prime is 1220220200107. The next prime is 1220220200141. The reversal of 1220220200109 is 9010020220221.

It is a happy number.

It is not a de Polignac number, because 1220220200109 - 2¹ = 1220220200107 is a prime.

It is a super-2 number, since 2×1220220200109² (a number of 25 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 (1220220200107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20930392 + ... + 20988609.

It is an arithmetic number, because the mean of its divisors is an integer number (105300533024).

Almost surely, 2^{1220220200109} is an apocalyptic number.

It is an amenable number.

1220220200109 is a deficient number, since it is larger than the sum of its proper divisors (464588328275).

1220220200109 is a wasteful number, since it uses less digits than its factorization.

1220220200109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41919348.

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

The spelling of 1220220200109 in words is "one trillion, two hundred twenty billion, two hundred twenty million, two hundred thousand, one hundred nine".