223212030320 has 20 divisors (see below), whose sum is σ = 518967970680. Its totient is φ = 89284812096.

The previous prime is 223212030319. The next prime is 223212030337. The reversal of 223212030320 is 23030212322.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×223212030320³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 223212030292 and 223212030301.

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, 1395075110 + ... + 1395075269.

It is an arithmetic number, because the mean of its divisors is an integer number (25948398534).

Almost surely, 2^223212030320 is an apocalyptic number.

223212030320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223212030320 is an abundant number, since it is smaller than the sum of its proper divisors (295755940360).

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

223212030320 is a wasteful number, since it uses less digits than its factorization.

223212030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790150392 (or 2790150386 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 223212030320 its reverse (23030212322), we get a palindrome (246242242642).

The spelling of 223212030320 in words is "two hundred twenty-three billion, two hundred twelve million, thirty thousand, three hundred twenty".