213044222020 has 96 divisors (see below), whose sum is σ = 544104691200. Its totient is φ = 68401428480.

The previous prime is 213044222009. The next prime is 213044222051. The reversal of 213044222020 is 20222440312.

It is a super-2 number, since 2×213044222020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213044221982 and 213044222000.

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, 248710 + ... + 698530.

It is an arithmetic number, because the mean of its divisors is an integer number (5667757200).

Almost surely, 2^213044222020 is an apocalyptic number.

213044222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213044222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272052345600).

213044222020 is an abundant number, since it is smaller than the sum of its proper divisors (331060469180).

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

213044222020 is a wasteful number, since it uses less digits than its factorization.

213044222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450053 (or 450051 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 213044222020 its reverse (20222440312), we get a palindrome (233266662332).

The spelling of 213044222020 in words is "two hundred thirteen billion, forty-four million, two hundred twenty-two thousand, twenty".