20110121200219 has 8 divisors (see below), whose sum is σ = 20122888930832. Its totient is φ = 20097353918880.

The previous prime is 20110121200121. The next prime is 20110121200259. The reversal of 20110121200219 is 91200212101102.

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 20110121200219 - 2¹³ = 20110121192027 is a prime.

It is a super-2 number, since 2×20110121200219² (a number of 27 digits) contains 22 as substring.

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 20110121200219.

It is not an unprimeable number, because it can be changed into a prime (20110121200259) 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, 172112872 + ... + 172229674.

It is an arithmetic number, because the mean of its divisors is an integer number (2515361116354).

Almost surely, 2^{20110121200219} is an apocalyptic number.

20110121200219 is a deficient number, since it is larger than the sum of its proper divisors (12767730613).

20110121200219 is a wasteful number, since it uses less digits than its factorization.

20110121200219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224637.

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

The spelling of 20110121200219 in words is "twenty trillion, one hundred ten billion, one hundred twenty-one million, two hundred thousand, two hundred nineteen".