30013221222 has 32 divisors (see below), whose sum is σ = 66723465600. Its totient is φ = 10000294344.

The previous prime is 30013221221. The next prime is 30013221223. The reversal of 30013221222 is 22212231003.

30013221222 is a `hidden beast` number, since 300 + 132 + 212 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (30013221221) and next prime (30013221223).

It is a super-2 number, since 2×30013221222² (a number of 22 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 = 30013221195 and 30013221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30013221221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19773 + ... + 245799.

It is an arithmetic number, because the mean of its divisors is an integer number (2085108300).

Almost surely, 2^30013221222 is an apocalyptic number.

30013221222 is an abundant number, since it is smaller than the sum of its proper divisors (36710244378).

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

30013221222 is a wasteful number, since it uses less digits than its factorization.

30013221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228497 (or 228491 counting only the distinct ones).

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

Adding to 30013221222 its reverse (22212231003), we get a palindrome (52225452225).

It can be divided in two parts, 3001 and 3221222, that added together give a palindrome (3224223).

The spelling of 30013221222 in words is "thirty billion, thirteen million, two hundred twenty-one thousand, two hundred twenty-two".