1000212020 has 24 divisors (see below), whose sum is σ = 2101040424. Its totient is φ = 399971456.

The previous prime is 1000212019. The next prime is 1000212023. The reversal of 1000212020 is 202120001.

1000212020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 72522256 + 927689764 = 8516^2 + 30458^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000211989 and 1000212007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000212023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129302 + ... + 136818.

It is an arithmetic number, because the mean of its divisors is an integer number (87543351).

Almost surely, 2^1000212020 is an apocalyptic number.

1000212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000212020 is an abundant number, since it is smaller than the sum of its proper divisors (1100828404).

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

1000212020 is a wasteful number, since it uses less digits than its factorization.

1000212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14179 (or 14177 counting only the distinct ones).

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

The square root of 1000212020 is about 31626.1287545599. The cubic root of 1000212020 is about 1000.0706683392.

Adding to 1000212020 its reverse (202120001), we get a palindrome (1202332021).

It can be divided in two parts, 10002 and 12020, that added together give a palindrome (22022).

The spelling of 1000212020 in words is "one billion, two hundred twelve thousand, twenty".