223213210020 has 144 divisors (see below), whose sum is σ = 697651002048. Its totient is φ = 57725602560.

The previous prime is 223213210007. The next prime is 223213210021. The reversal of 223213210020 is 20012312322.

223213210020 is a `hidden beast` number, since 2 + 2 + 321 + 321 + 0 + 0 + 20 = 666.

223213210020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223213210020³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 223213209975 and 223213210002.

It is not an unprimeable number, because it can be changed into a prime (223213210021) 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 47 ways as a sum of consecutive naturals, for example, 1990035 + ... + 2099205.

Almost surely, 2^223213210020 is an apocalyptic number.

223213210020 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 223213210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348825501024).

223213210020 is an abundant number, since it is smaller than the sum of its proper divisors (474437792028).

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

223213210020 is a wasteful number, since it uses less digits than its factorization.

223213210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109530 (or 109525 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 223213210020 its reverse (20012312322), we get a palindrome (243225522342).

The spelling of 223213210020 in words is "two hundred twenty-three billion, two hundred thirteen million, two hundred ten thousand, twenty".