10111233220 has 96 divisors (see below), whose sum is σ = 23606142336. Its totient is φ = 3607296000.

The previous prime is 10111233217. The next prime is 10111233241. The reversal of 10111233220 is 2233211101.

It is a junction number, because it is equal to n+sod(n) for n = 10111233194 and 10111233203.

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, 2508847 + ... + 2512873.

It is an arithmetic number, because the mean of its divisors is an integer number (245897316).

Almost surely, 2^10111233220 is an apocalyptic number.

10111233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10111233220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11803071168).

10111233220 is an abundant number, since it is smaller than the sum of its proper divisors (13494909116).

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

10111233220 is a wasteful number, since it uses less digits than its factorization.

10111233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261 (or 4259 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10111233220 its reverse (2233211101), we get a palindrome (12344444321).

The spelling of 10111233220 in words is "ten billion, one hundred eleven million, two hundred thirty-three thousand, two hundred twenty".