20122016 has 48 divisors (see below), whose sum is σ = 42892416. Its totient is φ = 9255936.

The previous prime is 20121989. The next prime is 20122031. The reversal of 20122016 is 61022102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25175 + ... + 25961.

It is an arithmetic number, because the mean of its divisors is an integer number (893592).

Almost surely, 2^20122016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21446208).

20122016 is an abundant number, since it is smaller than the sum of its proper divisors (22770400).

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

20122016 is a wasteful number, since it uses less digits than its factorization.

20122016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20122016 is about 4485.7570152651. The cubic root of 20122016 is about 271.9926468600.

Adding to 20122016 its reverse (61022102), we get a palindrome (81144118).

The spelling of 20122016 in words is "twenty million, one hundred twenty-two thousand, sixteen".