212002322220 has 144 divisors (see below), whose sum is σ = 718190796960. Its totient is φ = 52185171456.

The previous prime is 212002322153. The next prime is 212002322237. The reversal of 212002322220 is 22223200212.

212002322220 is a `hidden beast` number, since 2 + 120 + 0 + 2 + 322 + 220 = 666.

212002322220 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 3×212002322220³ (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 = 212002322193 and 212002322202.

It is an unprimeable number.

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, 1614585 + ... + 1740944.

It is an arithmetic number, because the mean of its divisors is an integer number (4987436090).

Almost surely, 2^212002322220 is an apocalyptic number.

212002322220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212002322220 is an abundant number, since it is smaller than the sum of its proper divisors (506188474740).

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

212002322220 is a wasteful number, since it uses less digits than its factorization.

212002322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355566 (or 3355552 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 212002322220 its reverse (22223200212), we get a palindrome (234225522432).

The spelling of 212002322220 in words is "two hundred twelve billion, two million, three hundred twenty-two thousand, two hundred twenty".