210030312222 has 96 divisors (see below), whose sum is σ = 484998119424. Its totient is φ = 65577859200.

The previous prime is 210030312197. The next prime is 210030312223. The reversal of 210030312222 is 222213030012.

210030312222 is a `hidden beast` number, since 2 + 100 + 30 + 312 + 222 = 666.

210030312222 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-2 number, since 2×210030312222² (a number of 23 digits) contains 22 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 = 210030312195 and 210030312204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210030312223) 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, 2869363 + ... + 2941649.

It is an arithmetic number, because the mean of its divisors is an integer number (5052063744).

Almost surely, 2^210030312222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210030312222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242499059712).

210030312222 is an abundant number, since it is smaller than the sum of its proper divisors (274967807202).

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

210030312222 is a wasteful number, since it uses less digits than its factorization.

210030312222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72494 (or 72491 counting only the distinct ones).

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

Adding to 210030312222 its reverse (222213030012), we get a palindrome (432243342234).

The spelling of 210030312222 in words is "two hundred ten billion, thirty million, three hundred twelve thousand, two hundred twenty-two".