20000221102111 has 8 divisors (see below), whose sum is σ = 20149083234000. Its totient is φ = 19851430051200.

The previous prime is 20000221102093. The next prime is 20000221102129. The reversal of 20000221102111 is 11120112200002.

It is an interprime number because it is at equal distance from previous prime (20000221102093) and next prime (20000221102129).

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 20000221102111 - 2²¹ = 20000219004959 is a prime.

It is a super-2 number, since 2×20000221102111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000221102091 and 20000221102100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000221202111) 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, 17205340 + ... + 18330961.

It is an arithmetic number, because the mean of its divisors is an integer number (2518635404250).

Almost surely, 2^{20000221102111} is an apocalyptic number.

20000221102111 is a deficient number, since it is larger than the sum of its proper divisors (148862131889).

20000221102111 is a wasteful number, since it uses less digits than its factorization.

20000221102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35540489.

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

Adding to 20000221102111 its reverse (11120112200002), we get a palindrome (31120333302113).

The spelling of 20000221102111 in words is "twenty trillion, two hundred twenty-one million, one hundred two thousand, one hundred eleven".