1020202522 has 4 divisors (see below), whose sum is σ = 1530303786. Its totient is φ = 510101260.

The previous prime is 1020202507. The next prime is 1020202523. The reversal of 1020202522 is 2252020201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1009904841 + 10297681 = 31779^2 + 3209^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020202496 and 1020202505.

It is not an unprimeable number, because it can be changed into a prime (1020202523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255050629 + ... + 255050632.

Almost surely, 2^1020202522 is an apocalyptic number.

1020202522 is a deficient number, since it is larger than the sum of its proper divisors (510101264).

1020202522 is an equidigital number, since it uses as much as digits as its factorization.

1020202522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510101263.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1020202522 is about 31940.6092928735. The cubic root of 1020202522 is about 1006.6893271266.

Adding to 1020202522 its reverse (2252020201), we get a palindrome (3272222723).

The spelling of 1020202522 in words is "one billion, twenty million, two hundred two thousand, five hundred twenty-two".