1010202020 has 24 divisors (see below), whose sum is σ = 2166562944. Its totient is φ = 395482976.

The previous prime is 1010202019. The next prime is 1010202041. The reversal of 1010202020 is 202020101.

It is a junction number, because it is equal to n+sod(n) for n = 1010201989 and 1010202007.

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, 536402 + ... + 538281.

It is an arithmetic number, because the mean of its divisors is an integer number (90273456).

Almost surely, 2^1010202020 is an apocalyptic number.

1010202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010202020 is an abundant number, since it is smaller than the sum of its proper divisors (1156360924).

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

1010202020 is a wasteful number, since it uses less digits than its factorization.

1010202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074739 (or 1074737 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1010202020 is about 31783.6753695981. The cubic root of 1010202020 is about 1003.3891738573.

Adding to 1010202020 its reverse (202020101), we get a palindrome (1212222121).

The spelling of 1010202020 in words is "one billion, ten million, two hundred two thousand, twenty".