20212110021109 has 8 divisors (see below), whose sum is σ = 20561882829120. Its totient is φ = 19862577035616.

The previous prime is 20212110021107. The next prime is 20212110021121. The reversal of 20212110021109 is 90112001121202.

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 20212110021109 - 2¹ = 20212110021107 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 20212110021109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212110021107) 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, 59785609 + ... + 60122734.

It is an arithmetic number, because the mean of its divisors is an integer number (2570235353640).

Almost surely, 2^{20212110021109} is an apocalyptic number.

It is an amenable number.

20212110021109 is a deficient number, since it is larger than the sum of its proper divisors (349772808011).

20212110021109 is a wasteful number, since it uses less digits than its factorization.

20212110021109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119911259.

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

The spelling of 20212110021109 in words is "twenty trillion, two hundred twelve billion, one hundred ten million, twenty-one thousand, one hundred nine".