20102124224 has 112 divisors (see below), whose sum is σ = 49259874048. Its totient is φ = 7925879808.

The previous prime is 20102124221. The next prime is 20102124227. The reversal of 20102124224 is 42242120102.

It is an interprime number because it is at equal distance from previous prime (20102124221) and next prime (20102124227).

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 20102124196 and 20102124205.

It is not an unprimeable number, because it can be changed into a prime (20102124221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1782347 + ... + 1793589.

It is an arithmetic number, because the mean of its divisors is an integer number (439820304).

Almost surely, 2^20102124224 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 20102124224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24629937024).

20102124224 is an abundant number, since it is smaller than the sum of its proper divisors (29157749824).

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

20102124224 is a wasteful number, since it uses less digits than its factorization.

20102124224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11582 (or 11572 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20102124224 its reverse (42242120102), we get a palindrome (62344244326).

The spelling of 20102124224 in words is "twenty billion, one hundred two million, one hundred twenty-four thousand, two hundred twenty-four".