30222221130 has 96 divisors (see below), whose sum is σ = 79795379664. Its totient is φ = 7935234048.

The previous prime is 30222221069. The next prime is 30222221131. The reversal of 30222221130 is 3112222203.

It can be written as a sum of positive squares in 8 ways, for example, as 24301380321 + 5920840809 = 155889^2 + 76947^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30222221131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1711024 + ... + 1728596.

Almost surely, 2^30222221130 is an apocalyptic number.

30222221130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30222221130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39897689832).

30222221130 is an abundant number, since it is smaller than the sum of its proper divisors (49573158534).

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

30222221130 is a wasteful number, since it uses less digits than its factorization.

30222221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17880 (or 17877 counting only the distinct ones).

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

Adding to 30222221130 its reverse (3112222203), we get a palindrome (33334443333).

The spelling of 30222221130 in words is "thirty billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred thirty".