30233012220 has 72 divisors (see below), whose sum is σ = 92047868640. Its totient is φ = 8032152960.

The previous prime is 30233012207. The next prime is 30233012221. The reversal of 30233012220 is 2221033203.

It is a happy number.

30233012220 is a `hidden beast` number, since 302 + 330 + 12 + 2 + 20 = 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 = 30233012193 and 30233012202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30233012221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 263776 + ... + 360615.

It is an arithmetic number, because the mean of its divisors is an integer number (1278442620).

Almost surely, 2^30233012220 is an apocalyptic number.

30233012220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30233012220 is an abundant number, since it is smaller than the sum of its proper divisors (61814856420).

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

30233012220 is a wasteful number, since it uses less digits than its factorization.

30233012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624675 (or 624670 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30233012220 its reverse (2221033203), we get a palindrome (32454045423).

The spelling of 30233012220 in words is "thirty billion, two hundred thirty-three million, twelve thousand, two hundred twenty".