10020402522 has 24 divisors (see below), whose sum is σ = 23380939764. Its totient is φ = 3083200704.

The previous prime is 10020402487. The next prime is 10020402569. The reversal of 10020402522 is 22520402001.

10020402522 is a `hidden beast` number, since 100 + 2 + 0 + 40 + 2 + 522 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9999800001 + 20602521 = 99999^2 + 4539^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10020402495 and 10020402504.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21410883 + ... + 21411350.

Almost surely, 2^10020402522 is an apocalyptic number.

10020402522 is an abundant number, since it is smaller than the sum of its proper divisors (13360537242).

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

10020402522 is a wasteful number, since it uses less digits than its factorization.

10020402522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42822254 (or 42822251 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 10020402522 its reverse (22520402001), we get a palindrome (32540804523).

The spelling of 10020402522 in words is "ten billion, twenty million, four hundred two thousand, five hundred twenty-two".