1220101102209 has 16 divisors (see below), whose sum is σ = 1774711733184. Its totient is φ = 739447204800.

The previous prime is 1220101102183. The next prime is 1220101102243. The reversal of 1220101102209 is 9022011010221.

It is not a de Polignac number, because 1220101102209 - 2¹¹ = 1220101100161 is a prime.

It is a super-2 number, since 2×1220101102209² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220101102109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4637619 + ... + 4893639.

It is an arithmetic number, because the mean of its divisors is an integer number (110919483324).

Almost surely, 2^{1220101102209} is an apocalyptic number.

It is an amenable number.

1220101102209 is a deficient number, since it is larger than the sum of its proper divisors (554610630975).

1220101102209 is a wasteful number, since it uses less digits than its factorization.

1220101102209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400448.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 1220101102209 in words is "one trillion, two hundred twenty billion, one hundred one million, one hundred two thousand, two hundred nine".