212322033220 has 24 divisors (see below), whose sum is σ = 486410476608. Its totient is φ = 77208012000.

The previous prime is 212322033197. The next prime is 212322033223. The reversal of 212322033220 is 22330223212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 212322033191 and 212322033200.

It is not an unprimeable number, because it can be changed into a prime (212322033223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482549856 + ... + 482550295.

It is an arithmetic number, because the mean of its divisors is an integer number (20267103192).

Almost surely, 2^212322033220 is an apocalyptic number.

212322033220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212322033220 is an abundant number, since it is smaller than the sum of its proper divisors (274088443388).

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

212322033220 is a wasteful number, since it uses less digits than its factorization.

212322033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965100171 (or 965100169 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 212322033220 its reverse (22330223212), we get a palindrome (234652256432).

The spelling of 212322033220 in words is "two hundred twelve billion, three hundred twenty-two million, thirty-three thousand, two hundred twenty".