1020401022 has 64 divisors (see below), whose sum is σ = 2196854784. Its totient is φ = 315342720.

The previous prime is 1020401017. The next prime is 1020401077. The reversal of 1020401022 is 2201040201.

It is a junction number, because it is equal to n+sod(n) for n = 1020400989 and 1020401007.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 459988 + ... + 462200.

It is an arithmetic number, because the mean of its divisors is an integer number (34325856).

Almost surely, 2^1020401022 is an apocalyptic number.

1020401022 is an abundant number, since it is smaller than the sum of its proper divisors (1176453762).

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

1020401022 is a wasteful number, since it uses less digits than its factorization.

1020401022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1020401022 is about 31943.7164713187. The cubic root of 1020401022 is about 1006.7546131420.

Adding to 1020401022 its reverse (2201040201), we get a palindrome (3221441223).

The spelling of 1020401022 in words is "one billion, twenty million, four hundred one thousand, twenty-two".