30123022220 has 48 divisors (see below), whose sum is σ = 64169757120. Its totient is φ = 11875838976.

The previous prime is 30123022217. The next prime is 30123022231. The reversal of 30123022220 is 2222032103.

It is a super-2 number, since 2×30123022220² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2342729 + ... + 2355551.

It is an arithmetic number, because the mean of its divisors is an integer number (1336869940).

Almost surely, 2^30123022220 is an apocalyptic number.

It is an amenable number.

30123022220 is an abundant number, since it is smaller than the sum of its proper divisors (34046734900).

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

30123022220 is a wasteful number, since it uses less digits than its factorization.

30123022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14514 (or 14512 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30123022220 its reverse (2222032103), we get a palindrome (32345054323).

The spelling of 30123022220 in words is "thirty billion, one hundred twenty-three million, twenty-two thousand, two hundred twenty".