2020212421 has 8 divisors (see below), whose sum is σ = 2063902464. Its totient is φ = 1976551920.

The previous prime is 2020212419. The next prime is 2020212427. The reversal of 2020212421 is 1242120202.

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

It is a cyclic number.

It is not a de Polignac number, because 2020212421 - 2¹ = 2020212419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020212395 and 2020212404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020212427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183256 + ... + 193966.

It is an arithmetic number, because the mean of its divisors is an integer number (257987808).

Almost surely, 2^2020212421 is an apocalyptic number.

It is an amenable number.

2020212421 is a deficient number, since it is larger than the sum of its proper divisors (43690043).

2020212421 is a wasteful number, since it uses less digits than its factorization.

2020212421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14771.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2020212421 is about 44946.7731989739. The cubic root of 2020212421 is about 1264.1511740105.

Adding to 2020212421 its reverse (1242120202), we get a palindrome (3262332623).

It can be divided in two parts, 20202 and 12421, that added together give a palindrome (32623).

The spelling of 2020212421 in words is "two billion, twenty million, two hundred twelve thousand, four hundred twenty-one".