10111123223220 has 96 divisors (see below), whose sum is σ = 29052553622400. Its totient is φ = 2626048535040.

The previous prime is 10111123223213. The next prime is 10111123223237. The reversal of 10111123223220 is 2232232111101.

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, 4714251 + ... + 6515090.

It is an arithmetic number, because the mean of its divisors is an integer number (302630766900).

Almost surely, 2^{10111123223220} is an apocalyptic number.

10111123223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111123223220 is an abundant number, since it is smaller than the sum of its proper divisors (18941430399180).

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

10111123223220 is a wasteful number, since it uses less digits than its factorization.

10111123223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11229745 (or 11229743 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 10111123223220 its reverse (2232232111101), we get a palindrome (12343355334321).

The spelling of 10111123223220 in words is "ten trillion, one hundred eleven billion, one hundred twenty-three million, two hundred twenty-three thousand, two hundred twenty".