1021020522 has 8 divisors (see below), whose sum is σ = 2042041056. Its totient is φ = 340340172.

The previous prime is 1021020491. The next prime is 1021020529. The reversal of 1021020522 is 2250201201.

It is a sphenic number, since it is the product of 3 distinct primes.

1021020522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1021020529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85085038 + ... + 85085049.

It is an arithmetic number, because the mean of its divisors is an integer number (255255132).

Almost surely, 2^1021020522 is an apocalyptic number.

1021020522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1021020522 is a wasteful number, since it uses less digits than its factorization.

1021020522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170170092.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1021020522 is about 31953.4117427232. The cubic root of 1021020522 is about 1006.9583102820.

Adding to 1021020522 its reverse (2250201201), we get a palindrome (3271221723).

The spelling of 1021020522 in words is "one billion, twenty-one million, twenty thousand, five hundred twenty-two".