202012212020 has 12 divisors (see below), whose sum is σ = 424225645284. Its totient is φ = 80804884800.

The previous prime is 202012211993. The next prime is 202012212047. The reversal of 202012212020 is 20212210202.

It is an interprime number because it is at equal distance from previous prime (202012211993) and next prime (202012212047).

It can be written as a sum of positive squares in 2 ways, for example, as 90303856036 + 111708355984 = 300506^2 + 334228^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202012211986 and 202012212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050305281 + ... + 5050305320.

It is an arithmetic number, because the mean of its divisors is an integer number (35352137107).

Almost surely, 2^202012212020 is an apocalyptic number.

202012212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012212020 is an abundant number, since it is smaller than the sum of its proper divisors (222213433264).

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

202012212020 is a wasteful number, since it uses less digits than its factorization.

202012212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100610610 (or 10100610608 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202012212020 its reverse (20212210202), we get a palindrome (222224422222).

The spelling of 202012212020 in words is "two hundred two billion, twelve million, two hundred twelve thousand, twenty".