20211114 has 96 divisors (see below), whose sum is σ = 52553088. Its totient is φ = 5068800.

The previous prime is 20211109. The next prime is 20211127. The reversal of 20211114 is 41111202.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20211114.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 208314 + ... + 208410.

It is an arithmetic number, because the mean of its divisors is an integer number (547428).

Almost surely, 2^20211114 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20211114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26276544).

20211114 is an abundant number, since it is smaller than the sum of its proper divisors (32341974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20211114 is a wasteful number, since it uses less digits than its factorization.

20211114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 20211114 is about 4495.6772570993. The cubic root of 20211114 is about 272.3935066300.

Adding to 20211114 its reverse (41111202), we get a palindrome (61322316).

The spelling of 20211114 in words is "twenty million, two hundred eleven thousand, one hundred fourteen".