30120213222 has 48 divisors (see below), whose sum is σ = 71781662160. Its totient is φ = 9127330080.

The previous prime is 30120213217. The next prime is 30120213271. The reversal of 30120213222 is 22231202103.

30120213222 is a `hidden beast` number, since 301 + 20 + 21 + 322 + 2 = 666.

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 = 30120213195 and 30120213204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 604647 + ... + 652562.

It is an arithmetic number, because the mean of its divisors is an integer number (1495451295).

Almost surely, 2^30120213222 is an apocalyptic number.

30120213222 is an abundant number, since it is smaller than the sum of its proper divisors (41661448938).

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

30120213222 is a wasteful number, since it uses less digits than its factorization.

30120213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257250 (or 1257225 counting only the distinct ones).

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

Adding to 30120213222 its reverse (22231202103), we get a palindrome (52351415325).

It can be divided in two parts, 30120 and 213222, that added together give a palindrome (243342).

The spelling of 30120213222 in words is "thirty billion, one hundred twenty million, two hundred thirteen thousand, two hundred twenty-two".