2021202111109 has 8 divisors (see below), whose sum is σ = 2090914996320. Its totient is φ = 1951490310000.

The previous prime is 2021202111107. The next prime is 2021202111133. The reversal of 2021202111109 is 9011112021202.

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 2021202111109 - 2¹ = 2021202111107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021202111109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021202111107) 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, 5917234 + ... + 6249484.

It is an arithmetic number, because the mean of its divisors is an integer number (261364374540).

Almost surely, 2^{2021202111109} is an apocalyptic number.

2021202111109 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2021202111109 is a deficient number, since it is larger than the sum of its proper divisors (69712885211).

2021202111109 is a wasteful number, since it uses less digits than its factorization.

2021202111109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542051.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 2021202111109 in words is "two trillion, twenty-one billion, two hundred two million, one hundred eleven thousand, one hundred nine".