20122110 has 96 divisors (see below), whose sum is σ = 54991872. Its totient is φ = 5100480.

The previous prime is 20122093. The next prime is 20122133. The reversal of 20122110 is 1122102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20122092 and 20122101.

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, 283375 + ... + 283445.

It is an arithmetic number, because the mean of its divisors is an integer number (572832).

Almost surely, 2^20122110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27495936).

20122110 is an abundant number, since it is smaller than the sum of its proper divisors (34869762).

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

20122110 is a wasteful number, since it uses less digits than its factorization.

20122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 20122110 is about 4485.7674928601. The cubic root of 20122110 is about 271.9930703973.

Adding to 20122110 its reverse (1122102), we get a palindrome (21244212).

The spelling of 20122110 in words is "twenty million, one hundred twenty-two thousand, one hundred ten".