12210111030 has 64 divisors (see below), whose sum is σ = 31694120640. Its totient is φ = 2992644096.

The previous prime is 12210111013. The next prime is 12210111041. The reversal of 12210111030 is 3011101221.

It is a super-2 number, since 2×12210111030² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12210110997 and 12210111015.

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, 23686 + ... + 158054.

It is an arithmetic number, because the mean of its divisors is an integer number (495220635).

Almost surely, 2^12210111030 is an apocalyptic number.

12210111030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210111030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15847060320).

12210111030 is an abundant number, since it is smaller than the sum of its proper divisors (19484009610).

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

12210111030 is a wasteful number, since it uses less digits than its factorization.

12210111030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134625.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 12210111030 its reverse (3011101221), we get a palindrome (15221212251).

The spelling of 12210111030 in words is "twelve billion, two hundred ten million, one hundred eleven thousand, thirty".