20011022124 has 24 divisors (see below), whose sum is σ = 47389288128. Its totient is φ = 6570783120.

The previous prime is 20011022117. The next prime is 20011022149. The reversal of 20011022124 is 42122011002.

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, 12443862 + ... + 12445469.

It is an arithmetic number, because the mean of its divisors is an integer number (1974553672).

Almost surely, 2^20011022124 is an apocalyptic number.

It is an amenable number.

20011022124 is an abundant number, since it is smaller than the sum of its proper divisors (27378266004).

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

20011022124 is a wasteful number, since it uses less digits than its factorization.

20011022124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24889405 (or 24889403 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20011022124 its reverse (42122011002), we get a palindrome (62133033126).

The spelling of 20011022124 in words is "twenty billion, eleven million, twenty-two thousand, one hundred twenty-four".