20000221120111 has 8 divisors (see below), whose sum is σ = 20015647470000. Its totient is φ = 19984797366720.

The previous prime is 20000221120097. The next prime is 20000221120171. The reversal of 20000221120111 is 11102112200002.

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 20000221120111 - 2²³ = 20000212731503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000221120091 and 20000221120100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000221120171) 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, 14905885 + ... + 16192153.

It is an arithmetic number, because the mean of its divisors is an integer number (2501955933750).

Almost surely, 2^{20000221120111} is an apocalyptic number.

20000221120111 is a deficient number, since it is larger than the sum of its proper divisors (15426349889).

20000221120111 is a wasteful number, since it uses less digits than its factorization.

20000221120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298249.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20000221120111 its reverse (11102112200002), we get a palindrome (31102333320113).

The spelling of 20000221120111 in words is "twenty trillion, two hundred twenty-one million, one hundred twenty thousand, one hundred eleven".