12111220030 has 64 divisors (see below), whose sum is σ = 26889408000. Its totient is φ = 3824659584.

The previous prime is 12111220007. The next prime is 12111220061. The reversal of 12111220030 is 3002211121.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410721 + ... + 439219.

It is an arithmetic number, because the mean of its divisors is an integer number (420147000).

Almost surely, 2^12111220030 is an apocalyptic number.

12111220030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111220030 is an abundant number, since it is smaller than the sum of its proper divisors (14778187970).

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

12111220030 is a wasteful number, since it uses less digits than its factorization.

12111220030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28993.

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

Adding to 12111220030 its reverse (3002211121), we get a palindrome (15113431151).

The spelling of 12111220030 in words is "twelve billion, one hundred eleven million, two hundred twenty thousand, thirty".