2001220101109 has 8 divisors (see below), whose sum is σ = 2124841273920. Its totient is φ = 1878254744256.

The previous prime is 2001220101103. The next prime is 2001220101119. The reversal of 2001220101109 is 9011010221002.

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 2001220101109 - 2¹¹ = 2001220099061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001220101103) 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, 163947699 + ... + 163959904.

It is an arithmetic number, because the mean of its divisors is an integer number (265605159240).

Almost surely, 2^{2001220101109} is an apocalyptic number.

It is an amenable number.

2001220101109 is a deficient number, since it is larger than the sum of its proper divisors (123621172811).

2001220101109 is a wasteful number, since it uses less digits than its factorization.

2001220101109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327907979.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 2001220101109 in words is "two trillion, one billion, two hundred twenty million, one hundred one thousand, one hundred nine".