30111012220 has 24 divisors (see below), whose sum is σ = 63943614000. Its totient is φ = 11909073792.

The previous prime is 30111012167. The next prime is 30111012233. The reversal of 30111012220 is 2221011103.

It is a self number, because there is not a number n which added to its sum of digits gives 30111012220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8456370 + ... + 8459929.

It is an arithmetic number, because the mean of its divisors is an integer number (2664317250).

Almost surely, 2^30111012220 is an apocalyptic number.

It is an amenable number.

30111012220 is an abundant number, since it is smaller than the sum of its proper divisors (33832601780).

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

30111012220 is a wasteful number, since it uses less digits than its factorization.

30111012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16916397 (or 16916395 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30111012220 its reverse (2221011103), we get a palindrome (32332023323).

The spelling of 30111012220 in words is "thirty billion, one hundred eleven million, twelve thousand, two hundred twenty".